Men's Wellness
Urinary Symptoms and Enlarged Prostate (BPH): Frequency, Nocturia and Weak Stream
Needing to pass urine more often, getting up at night or noticing a weaker stream is common as men get older, and an enlarged prostate is the most frequent reason, though not the only one. This page explains what the symptoms mean, how they are checked, which everyday steps health agencies suggest, and what the evidence says about supplements.
General information, not medical advice. Last updated November 1, 2026. Written by the AlternativeMed editorial team. Not medically reviewed.
Start here
- Book a visit with a doctor for any new difficulty passing urine or needing to go more often: the same symptoms can come from an enlarged prostate, a bladder problem, an infection or, less often, something more serious.
- For at least 3 days, write down what you drink and when, and how often and how much you pass urine. The NHS says a doctor will usually ask for this record, and it makes the visit more useful.
- Try the simple steps while you wait: cut down on alcohol and caffeine, drink a little less in the hours before bed or going out (but not too little overall), stay active, and take a moment to empty fully without straining.
Be careful with
- Being suddenly unable to pass urine at all is an emergency: seek emergency medical care right away.
- Do not cut back on fluids too much. The NHS warns this can cause problems such as urinary tract infections.
- Some cold and cough medicines, tranquilizers, antidepressants and diuretics can make symptoms worse. Ask a doctor or pharmacist to review what you take, and never stop a prescribed medicine on your own.
- Do not assume symptoms are 'just age'. They need checking because they can sometimes have more serious causes, and early detection can make treatment easier.
- Saw palmetto and other prostate supplements are widely sold, but the best reviews found saw palmetto gives little or no benefit for these symptoms. A supplement should never replace a check-up.
Get help when
- Cannot pass urine at all, or a very full bladder with pain: emergency care right away.
- Blood in the urine (it may look pink, red or brown).
- Painful, frequent and urgent urination with fever and chills.
- Great discomfort or pain in the lower abdomen or urinary tract, or pain when passing urine.
- Any difficulty urinating or needing to go more often that is new, getting worse or affecting sleep and daily life: see a doctor (non-urgent).
- New back pain, weight loss you cannot explain or leaking of urine together with these symptoms: ask a doctor promptly.
About Urinary Symptoms and Enlarged Prostate (BPH): Frequency, Nocturia and Weak Stream
What this goal means
This goal is about bothersome urinary frequency and related changes in men: needing to go more often than usual, getting up at night (nocturia), urgency, a weak or interrupted stream, hesitancy, dribbling at the end or a feeling of not emptying fully. Doctors group these as lower urinary tract symptoms.
NIDDK lists trouble starting a stream, a weak or interrupted stream, nocturia, urgency, frequency and pain during urination as symptoms of benign prostatic hyperplasia (BPH, or enlarged prostate). The NHS adds that symptoms usually develop slowly and may gradually get worse with age.
1,2Common experiences
Men describe planning journeys around toilets, waking once or several times a night, standing and waiting for the stream to start, a stream that stops and starts, or dribbling after finishing. Symptoms often creep up over years, so many men only notice how much they have adapted when a partner or doctor asks.
Symptom severity does not always match prostate size: NIDDK says a large prostate may cause few symptoms, while a slightly enlarged one can cause many.
2,1What can contribute
The prostate is a small gland below the bladder that surrounds the urethra, the tube that carries urine out. In BPH the gland grows larger than normal and the growth is not cancer. Scientists are not sure why it happens; ageing and changing hormone levels are thought to play a part. The NHS says an enlarged prostate is not caused by prostate cancer and does not increase the risk of getting it.
Other contributors are worth knowing. NIDDK lists a family history of BPH, heart and blood vessel disease, type 2 diabetes, obesity, chronic kidney disease, erectile dysfunction and being physically inactive as factors linked with BPH. Drinking a lot of fluid, alcohol and caffeine make you pass more urine. MedlinePlus adds that some medicines, nerve or spinal cord problems, scar tissue in the urethra, and some vitamins and supplements can also affect starting or keeping a stream.
1,2,3Conditions that can be behind it
NIDDK says these symptoms can also come from bladder problems, urinary tract infections, prostatitis or prostate cancer, which is why they need checking rather than guessing. MedlinePlus lists burning or pain with urination, cloudy urine, urgency and blood in the urine as signs of a possible infection.
BPH can also cause complications if it is not managed. NIDDK lists urinary retention (not emptying the bladder fully), blood in the urine, urinary tract infections, kidney disease and bladder stones.
1,3How common it is and what to expect
Experts estimate BPH affects 5% to 6% of men aged 40 to 64 and 29% to 33% of men aged 65 and older, and it rarely causes symptoms before age 40. The NHS notes that an enlarged prostate does not always need treatment: if symptoms are not causing many problems, doctors usually recommend trying lifestyle changes first, and medicines or surgery come into view if symptoms get worse.
Everyday steps can reduce how often you need to go, but they do not shrink the prostate. NIDDK says researchers have not found a way to prevent BPH, although being physically active may help reduce the risk.
1,2Who this applies to
Men (and anyone with a prostate) with frequency, urgency, a weak stream or night-time urination. Women with urinary symptoms have a different set of common causes; see the linked bladder and urinary page. This page focuses on frequency and stream; waking at night and its effect on sleep, general prostate-health habits and supplements, and erectile function each have their own pages (linked below).
1Related conditions and symptoms
Prostatitis → Men's health: when to get help → Urinary tract infections and urinary symptoms → Constipation → Erectile dysfunction → Sleep apnea →
A manageable starting plan
An educational starting point, not a personal prescription. Adjust it to your own situation and any advice from your clinician.
Your first actions
- Book a doctor visit for new or changing urinary symptoms; go urgently for blood in urine, pain, fever with urinary symptoms or being unable to pass urine.
- Keep a 3-day record of drinks and urination.
- Cut down alcohol and caffeine, and taper fluids before bed without drinking too little overall.
- Ask a pharmacist or doctor to review medicines and supplements that might be making symptoms worse.
Optional additions
- Stay active and aim for a healthy weight.
- Eat enough fibre to avoid constipation.
- Learn bladder training and pelvic floor exercises from a clinician.
- If you are curious about supplements, read the saw palmetto page first.
What to track
- Number of daytime trips and night-time wake-ups, and the strength of the stream.
- Drinks, caffeine and alcohol and the time you have them.
- New medicines or supplements and any change in symptoms.
- Any warning signs from the 'When to get help' list.
When to reassess
Give the simple steps a few weeks and compare your diary. If symptoms persist, worsen or affect sleep or daily life, return to your doctor, who may discuss medicines or other treatment.
When to seek professional support
- A GP, family doctor or urologist can check the cause and discuss options.
- A pharmacist can review medicines and supplements.
- A physiotherapist or continence nurse can teach bladder training and pelvic floor exercises.
What helps
Ordered by how well the research supports each step. Evidence strength is shown on every card; precautions sit next to the advice.
Start here
Get the symptoms checked and keep a 3-day bladder record
High certaintyAddresses: Finds the cause and shows the pattern, so treatment fits
Why it may help: The NHS stresses that these symptoms should be checked because they can sometimes have more serious causes such as prostate cancer, and early detection may make treatment easier. A doctor typically asks about symptoms, fluid intake, caffeine, alcohol and medicines, may examine the prostate, and may order a urine test and a PSA blood test. The NHS says doctors will usually ask you to keep a record for at least 3 days of how much you drink, and how often and how much you pass urine.
How to apply it: Note the time and rough amount each time you pass urine, what and when you drink, and the times you wake at night. Bring the record and a list of all medicines, supplements and over-the-counter products to the appointment.
Who it may suit: Anyone with new or changing urinary symptoms.
Precautions: A diary does not replace a medical check. Seek urgent care for the warning signs listed on this page.
2,1Cut down alcohol and caffeine
Moderate certaintyAddresses: Fewer trips to the toilet
Why it may help: The NHS says alcohol and caffeine can make you pass more urine, and NIDDK includes avoiding or limiting them among the lifestyle changes that may reduce symptoms. NIDDK adds that avoiding or reducing alcohol and caffeine can decrease the number of times you need to urinate.
How to apply it: Try swapping some coffee, strong tea, energy drinks and alcohol for water or decaffeinated drinks, especially in the afternoon and evening, and see whether your diary changes.
Who it may suit: Most men with frequency, urgency or night-time urination.
Precautions: Agency pages give this as practical advice rather than citing trial results. If you stop regular caffeine suddenly you may get headaches; reduce gradually.
2,1Time your fluids: less before bed or going out, enough through the day
Moderate certaintyAddresses: Fewer night-time and out-and-about trips
Why it may help: NIDDK says you can reduce how often you need to urinate in public or while sleeping by limiting what you drink before outings and bedtime. The NHS agrees but adds: make sure you drink enough during the rest of the day, because cutting down too much can cause problems such as urinary tract infections.
How to apply it: Spread drinks through the morning and afternoon, taper in the 2 to 3 hours before bed (a sensible window to test, not a number the agencies give), and do not restrict total fluids.
Who it may suit: Men who wake at night or avoid outings because of urgency.
Precautions: Do not restrict fluids heavily. Older adults, people on diuretics and people in hot weather should ask a clinician before changing how much they drink.
2,1Stay hydrated for daily wellbeing → Reduce Sleep Disruption From Nighttime Urination →
Additional options
Empty fully, without straining
Low certaintyAddresses: Less urine left behind, less dribbling
Why it may help: The NHS advises waiting a few moments after you finish and then trying again to empty the bladder, and not straining or pushing but relaxing. It also describes gently pressing behind the scrotum after you finish to help push out the last drops. NIDDK lists emptying the bladder completely and not holding urine for long periods among the lifestyle steps.
How to apply it: Take your time, relax your shoulders and pelvic area, try again after a few moments, and go when you feel the need instead of holding on for long stretches.
Who it may suit: Men with a slow stream, hesitancy or dribbling.
Precautions: Do not strain hard. If you cannot empty at all or have a painful, full bladder, seek emergency care.
2,1Stay active and keep a healthy weight
Low certaintyAddresses: May ease symptoms and lower the chance of BPH
Why it may help: NIDDK lists being physically inactive and obesity among factors linked with BPH, and says being physically active may help reduce the risk. The NHS advises keeping to a healthy weight, as being overweight can make symptoms worse.
How to apply it: Build up regular walking or other activity you enjoy; see the weight and activity pages for gradual approaches.
Who it may suit: Most men with lower urinary tract symptoms.
Precautions: Check with a clinician before starting vigorous exercise if you have heart disease, chest pain or other health conditions.
1,2Eat enough fibre to avoid constipation
Low certaintyAddresses: Less pressure on the bladder
Why it may help: The NHS says constipation can put pressure on your bladder and advises eating enough fibre to help prevent it.
How to apply it: Include vegetables, fruit, beans, lentils, oats and whole grains, increased gradually with enough fluid across the day.
Who it may suit: Men who also have hard or infrequent stools.
Precautions: Raise fibre slowly to avoid gas and bloating; ask a clinician if constipation is new or severe.
2Review medicines and supplements with a pharmacist or doctor
Moderate certaintyAddresses: Removes a fixable cause
Why it may help: NIDDK names over-the-counter cold and cough medicines (decongestants, antihistamines), tranquilizers, antidepressants and diuretics as medicines that can make BPH symptoms worse. The NHS advises checking with a doctor or pharmacist whether medicines you take for other conditions could be making symptoms worse. MedlinePlus also lists some vitamins and supplements as possible causes of difficulty with flow.
How to apply it: Make a list of everything you take, including over-the-counter products and supplements, and ask which could affect urination. Do not stop or change a prescribed medicine until the prescriber agrees.
Who it may suit: Men on regular medicines or who use cold remedies often.
Precautions: Never stop a prescribed medicine on your own.
1,2,3Bladder training and pelvic floor exercises
Low certaintyAddresses: Better control and longer gaps between trips
Why it may help: The NHS lists help with bladder training (holding on for a short time when you need to pass urine and gradually increasing the time over a few weeks) and pelvic floor muscle training as support that is available for people with an enlarged prostate.
How to apply it: Ask a doctor, nurse or physiotherapist to show you; they can check the technique and whether it suits your symptoms.
Who it may suit: Men with urgency, frequency or leaking.
Precautions: Do not train through pain, and do not hold urine for long if you have a weak stream or retention. Get guidance first.
2Warmth over the lower abdomen when it is hard to start
Not enough evidenceAddresses: May help the bladder relax so urine starts
Why it may help: MedlinePlus lists self-care steps for difficulty starting or keeping a stream: apply heat to the lower abdomen, gentle massage or light pressure over the bladder, and a warm bath or shower. This is general home-care advice for hesitancy, not a trial result.
How to apply it: Use gentle warmth only. Keep a record of urination patterns for your provider.
Who it may suit: Men with occasional hesitancy.
Precautions: Use warmth carefully to avoid burns, especially with reduced sensation. If you cannot pass urine at all, seek emergency care instead of relying on home steps.
3Still being studied
Medical treatment is decided with a clinician
High certaintyAddresses: Relieves moderate or severe symptoms
Why it may help: NIDDK says BPH can be treated with watchful waiting, medicines, minimally invasive procedures or surgery, and a clinician considers how severe symptoms are and how they affect quality of life. Medicine classes include alpha blockers, 5-alpha reductase inhibitors and PDE5 inhibitors, and a combination of an alpha blocker and a 5-ARI may work better than one alone. The NHS adds that medicines for urgency and frequency also exist.
How to apply it: See the 'Professional care' tab for plain-language descriptions. This page does not recommend any particular medicine or dose.
Who it may suit: Men whose symptoms bother them or who have complications.
Precautions: Medicines have side effects (including sexual side effects); surgery has risks. Discuss benefits and risks with a doctor.
1,2Food & nutrition
Drinks and timing
The main food-and-drink steps from NIDDK and the NHS are about drinks rather than special foods: less alcohol and caffeine, and fewer liquids in the hours before bed or going out, while still drinking enough overall.
NIDDK says researchers have not found eating, diet or nutrition to cause or prevent BPH, but changes may lessen symptoms.
- Choose water and decaffeinated drinks more often than coffee, strong tea, energy drinks and alcohol.
- Drink steadily earlier in the day and taper in the evening.
- Do not cut total fluids too far.
Fibre and bowel regularity
The NHS recommends enough fibre to prevent constipation, because constipation can put pressure on the bladder. Fibre-rich plant foods and gradual increases are covered in the linked constipation page.
- Vegetables, fruit, pulses, oats and whole grains.
- Increase gradually and drink fluids through the day.
Healthy weight
The NHS says keeping to a healthy weight matters, as being overweight can make symptoms worse. NIDDK lists obesity among the factors linked with BPH. We did not find a diet proven to treat BPH itself.
2,1Remedies & supplements
Traditional use, laboratory findings and human trials are kept apart. "Natural" does not mean safe.
Saw palmetto (Serenoa repens)
Evidence againstStudied form and route: Berry extract capsules or tablets, sold as a dietary supplement
Intended outcome: Promoted for urinary symptoms of BPH
Human evidence: A 2023 Cochrane review of 27 studies with 4,656 men found that saw palmetto on its own gives little to no benefit for urinary symptoms or quality of life at 3 to 6 months or at 12 to 17 months, with high-certainty evidence. NCCIH, which counted two NIH-funded trials in that review, concludes it is probably not helpful for this purpose.
Traditional use: The berries have been used for health purposes; NCCIH says it is promoted for BPH, hair loss and prostatitis.
Laboratory findings: We did not read lab studies for this page.
Limits: Combination products containing saw palmetto were less clear (low-certainty evidence of small differences, very uncertain on quality of life). NCCIH notes it does not appear to change PSA readings.
Interactions and precautions: NCCIH says it is well tolerated in studies up to 3 years, with mild, infrequent effects such as digestive upset, dizziness and headache, and may be unsafe in pregnancy or breastfeeding. Tell a health care provider about herbal products, as some interact with medicines. Do not use it instead of getting symptoms checked.
4,5Beta-sitosterol (plant sterol)
Low certaintyStudied form and route: Supplement of plant sterols
Intended outcome: Studied for urinary symptoms and flow in BPH
Human evidence: A Cochrane review of four randomised, placebo-controlled trials (519 men, lasting 4 to 26 weeks) found non-glucosidic beta-sitosterols improved urinary symptom scores and flow measures; they did not reduce prostate size. The authors said long-term effectiveness, safety and ability to prevent BPH complications are not known.
Traditional use: Not assessed here.
Laboratory findings: Not assessed here.
Limits: The review is from 2000 and based on four short trials; we did not find a recent agency page recommending it, and NIDDK and the NHS do not list it. Treat it as low-certainty.
Interactions and precautions: Long-term safety unknown. Check with a pharmacist if you take regular medicines. Do not use it to delay a medical check.
6Therapies & care
Established professional care for urinary symptoms starts with a medical check to find the cause. Doctors choose from watchful waiting with lifestyle changes, several classes of medicine, minimally invasive procedures and surgery, based on how bothersome the symptoms are. This page does not recommend particular medicines or doses, and you should not stop a prescribed medicine on your own.
Check-up and tests
High certaintyMedical assessment A doctor asks about symptoms, fluid intake, caffeine, alcohol and medicines; may do a physical and digital rectal exam; and may order a urine test and a PSA blood test. The NHS says a specialist may order a urine flow test, a bladder ultrasound or a camera look inside the bladder. NIDDK lists urodynamic tests, cystoscopy and transrectal ultrasound.
Who it may suit: Anyone with new or worsening urinary symptoms.
Precautions: PSA results can be inaccurate and lead to extra tests; decide together with a clinician.
1,2,7Watchful waiting with lifestyle changes
Moderate certaintyMonitoring NIDDK says if the prostate is slightly enlarged and symptoms don't affect quality of life, a clinician may recommend watchful waiting with yearly check-ups. The NHS says an enlarged prostate does not always need treatment.
Who it may suit: Men with mild symptoms.
Precautions: Report worsening symptoms; do not wait if you develop warning signs.
1,2Medicines (classes)
High certaintyPrescription Classes named by NIDDK are alpha blockers (relax muscle at the bladder neck and prostate), 5-alpha reductase inhibitors (slow growth or shrink the prostate) and PDE5 inhibitors; a combination of the first two may work better than one alone. The NHS also lists medicines for urgency and frequency and says doctors discuss benefits and side effects.
Who it may suit: Moderate or severe symptoms.
Precautions: Side effects can be minor to serious; tell the prescriber about any you notice. Never stop or change a prescribed medicine without advice.
1,2Minimally invasive procedures
Moderate certaintyProcedure NIDDK describes procedures that remove enlarged prostate tissue or widen the urethra, such as water-vapour therapy and implants that lift the prostate away from the urethra. The NHS lists laser, electrical, steam and water-jet methods and implants.
Who it may suit: Men for whom medicines are not enough or not suitable.
Precautions: Not suitable for everyone; a specialist explains options and risks.
1,2Surgery
High certaintySurgery Surgery may be offered if medicines do not help, symptoms are severe or complications develop. NIDDK says it can relieve symptoms but may not cure BPH, about 10% of people may need more surgery within 20 years, and complications can include sexual problems such as ED, retrograde ejaculation and infertility.
Who it may suit: Severe symptoms or complications.
Precautions: Discuss expected benefits, risks and recovery with a surgeon.
1,2Bladder training and pelvic floor muscle training
Low certaintySupportive care The NHS lists bladder training and pelvic floor muscle training, as well as pads or sheaths for leaks and a catheter if the bladder cannot be emptied, as support for living with an enlarged prostate.
Who it may suit: Men with urgency, leaking or incomplete emptying.
Precautions: Learn technique from a clinician.
2What to avoid
Habits, products and claims that can get in the way. Never stop a prescribed medicine without talking to the professional who prescribed it.
Risks that apply to most people
Waiting too long to get checked
High certaintyWhy: The NHS says these symptoms can sometimes be caused by more serious conditions such as prostate cancer, and finding cancer early may make it easier to treat. NIDDK says a health professional should be told about any urinary symptoms.
Who it applies to: Any man with new or worsening urinary symptoms.
Try instead: Book a routine visit; go urgently for blood in urine, pain, fever or inability to pass urine.
2,1Ignoring a sudden inability to pass urine
High certaintyWhy: Acute urinary retention can cause severe pain and be life threatening. Men with BPH are more likely to develop it, and about 1 in 10 men over 70 and almost 1 in 3 men in their 80s develop it over five years.
Who it applies to: All men, especially older men with BPH.
Try instead: Seek emergency medical care right away.
8Cutting fluids drastically
Moderate certaintyWhy: The NHS says not drinking enough can cause problems such as urinary tract infections.
Who it applies to: Anyone trying to reduce trips to the toilet.
Try instead: Time your drinks (less before bed) but drink enough through the rest of the day.
2Personal triggers to check
Alcohol and caffeine, especially in the evening
Moderate certaintyWhy: Both can make you pass more urine, according to the NHS.
Who it applies to: Men with frequency, urgency or night-time urination.
Try instead: Cut down, and shift any remaining caffeine and alcohol earlier in the day.
2,1Large drinks just before bed or an outing
Moderate certaintyWhy: NIDDK says limiting liquids before outings and bedtime reduces how often you need to urinate then.
Who it applies to: Men who wake at night or avoid trips out.
Try instead: Drink more earlier in the day and taper in the evening.
1,2Constipation
Low certaintyWhy: The NHS says constipation can put pressure on your bladder.
Who it applies to: Men with hard or infrequent stools.
Try instead: Eat enough fibre and stay active.
2Certain cold, cough and other medicines
Moderate certaintyWhy: NIDDK names decongestants and antihistamines in over-the-counter cold and cough medicines, tranquilizers, antidepressants and diuretics as medicines that can make BPH symptoms worse.
Who it applies to: Men who use these medicines.
Try instead: Ask a pharmacist or doctor about alternatives; do not stop prescribed medicines without advice.
1,2Products that need caution
Saw palmetto and 'prostate formula' supplements as a substitute for care
Evidence againstWhy: NCCIH concludes saw palmetto is probably not helpful for urinary symptoms of BPH. A Cochrane review of 27 studies and 4,656 men found it alone gives little to no benefit.
Who it applies to: Men considering supplements instead of a check-up.
Try instead: Get symptoms checked first; if you still want to try a supplement, discuss it with a pharmacist or doctor.
4,5Unsupported claims
'Shrinks your prostate naturally' claims
Evidence againstWhy: We did not find agency-level evidence that a food or supplement shrinks an enlarged prostate. NIDDK says researchers have not found eating, diet or nutrition to cause or prevent BPH. Beta-sitosterols did not reduce prostate size in the one Cochrane review we read.
Who it applies to: Anyone reading supplement marketing.
Try instead: Rely on the checked lifestyle steps and a clinician's advice.
1,6'Cures' or 'reverses' BPH
Evidence againstWhy: NIDDK says even surgery to remove prostate tissue may relieve symptoms but may not cure BPH.
Who it applies to: Men reading claims about a permanent fix.
Try instead: Ask a clinician what is realistic for your symptoms.
1Common mistakes
Assuming a normal PSA or a high PSA settles the question
High certaintyWhy: The NHS says a PSA result may not be accurate, you may be offered tests and treatment you do not need, and a high PSA does not mean cancer: an enlarged prostate is one of the other reasons. Routine PSA testing is not offered on the NHS, so the decision is a shared one.
Who it applies to: Men considering a PSA test.
Try instead: Discuss benefits and risks with a clinician before deciding.
7Straining to push urine out
Low certaintyWhy: The NHS advises against straining or pushing when passing urine.
Who it applies to: Men with a slow stream.
Try instead: Relax, wait, and try again after a moment.
2Putting up with it as 'just ageing'
Moderate certaintyWhy: Treatments for symptoms exist, and complications such as infection, bladder or kidney damage can develop if retention builds up slowly with no obvious symptoms.
Who it applies to: Older men.
Try instead: Mention urinary changes at check-ups.
1,8Evidence & safety
What the research shows
The strongest, most consistent guidance, from NIDDK and the NHS, is that urinary symptoms in men need a check; that BPH is common with age and not cancer; that alcohol, caffeine, fluid timing, activity, weight, fibre and medicine review can ease symptoms; and that medicines, procedures and surgery work for moderate or severe symptoms. The best evidence on saw palmetto, a Cochrane review judged high-certainty, shows little or no benefit. Evidence for other supplements is thin.
Limits of the evidence
- Agency lifestyle advice is practical guidance; we did not find randomised trials for most individual steps in the sources read.
- Beta-sitosterol evidence is a single older Cochrane review of four short trials.
- Prevalence figures are estimates and vary by population.
- We did not review newer trials of individual medicines or procedures; treatment pages describe classes in general terms.
Precautions and interactions
- Do not stop a prescribed medicine without speaking to the prescriber.
- Tell your doctor or pharmacist about all herbal products and supplements; some interact with medicines.
- Saw palmetto may be unsafe in pregnancy and breastfeeding (relevant to household use).
- Reducing fluids too far can cause urinary tract infections.
Life-stage considerations
- Older men: acute retention becomes more common with age (about 1 in 10 men over 70 and almost 1 in 3 men in their 80s over five years).
- Younger men: BPH rarely causes symptoms under 40, so frequency or a weak stream at younger ages needs a medical look for other causes.
- Women and children have different common causes of urinary symptoms; see the linked urinary page.
- Chronic conditions (diabetes, heart, kidney disease, nerve problems) and medicines can change urinary symptoms; review with a clinician.
Warning signs
- Unable to pass urine at all: emergency care right away.
- Blood in the urine.
- Painful, frequent, urgent urination with fever and chills.
- Great discomfort or pain in the lower abdomen or urinary tract.
- Pain when passing urine.
- New back pain or unexplained weight loss with urinary symptoms.
Claim checks
Saw palmetto relieves enlarged prostate symptoms
Evidence againstA 2023 Cochrane review (27 studies, 4,656 men) found little to no benefit alone; NCCIH concludes it is probably not helpful for this purpose.
5,4A supplement or food can shrink the prostate
Evidence againstWe did not find agency-level evidence for this. NIDDK says researchers have not found diet to cause or prevent BPH, and beta-sitosterols did not reduce prostate size in the review read.
1,6Beta-sitosterol improves BPH urinary symptoms
Low certaintyA Cochrane review of four short trials found better symptom scores and flow, but long-term effect and safety are unknown and the evidence is old.
6An enlarged prostate leads to prostate cancer
High certaintyThe NHS says it is not caused by prostate cancer and does not increase the risk of getting it, but the symptoms still need checking.
2Cutting back drinks is the best way to stop night-time trips
Moderate certaintyLimiting fluids before bed helps (NIDDK), but the NHS warns that drinking too little causes problems such as urinary infections.
1,2A PSA test settles whether it is cancer
High certaintyThe NHS says results can be inaccurate, and a high result can have other causes, including an enlarged prostate.
7Questions people ask
Does getting up at night to urinate mean I have prostate trouble?
Not necessarily. Nocturia is a symptom of BPH, but NIDDK lists other possible causes such as bladder problems, urinary tract infections, prostatitis and prostate cancer. It is worth getting checked.
Does an enlarged prostate cause cancer?
The NHS says it is not caused by prostate cancer and does not increase your risk of it, but the symptoms still need checking because they can sometimes have more serious causes.
How common is an enlarged prostate?
Experts estimate that BPH affects 5% to 6% of men aged 40 to 64 and 29% to 33% of men aged 65 and older, according to NIDDK.
Will saw palmetto shrink my prostate?
Reviews do not show a useful benefit for urinary symptoms. A 2023 Cochrane review found little to no benefit, and NCCIH concludes it is probably not helpful for BPH symptoms.
What can I change myself to pass urine less often?
The NHS and NIDDK suggest cutting down alcohol and caffeine, drinking less in the hours before bed or going out (but enough overall), staying active, keeping a healthy weight, eating enough fibre and checking whether your medicines are contributing.
What if I suddenly cannot pass urine?
Seek emergency medical care right away. NIDDK says acute urinary retention can cause severe pain and be life threatening.
Does the size of my prostate match how bad my symptoms are?
Not always. NIDDK says a large prostate can cause few symptoms and a slightly enlarged one can cause many.
Should I have a PSA test?
It is a shared decision. The NHS says the result may not be accurate and you may be offered tests or treatment you do not need; a high result does not mean cancer. Talk it through with a clinician.
Do I need treatment for an enlarged prostate?
Not always. The NHS says treatment depends on symptoms and how much they affect you; mild symptoms usually start with lifestyle changes, and medicines or surgery are considered if they get worse.
Can medicines I already take make it worse?
Yes, some can. NIDDK names over-the-counter cold and cough medicines, tranquilizers, antidepressants and diuretics. Ask a doctor or pharmacist, and do not stop a prescribed medicine on your own.
References
- NIDDK (NIH). Enlarged Prostate (Benign Prostatic Hyperplasia). Last reviewed June 2024. Read 2026-11-01. source
- NHS. Enlarged prostate. Page last reviewed 8 April 2025. Read 2026-11-01. source
- MedlinePlus (NLM). Urination - difficulty with flow. Read 2026-11-01. source
- NCCIH (NIH). Saw Palmetto: Usefulness and Safety. Last updated April 2025. Read 2026-11-01. source
- Franco JV, Trivisonno L, Sgarbossa NJ, et al. Serenoa repens for the treatment of lower urinary tract symptoms due to benign prostatic enlargement. Cochrane Database Syst Rev 2023;6:CD001423. PMID 37345871. Abstract read 2026-11-01. source
- Wilt T, Ishani A, MacDonald R, et al. Beta-sitosterols for benign prostatic hyperplasia. Cochrane Database Syst Rev 2000(2):CD001043. PMID 10796740. Abstract read 2026-11-01. source
- NHS. PSA testing. Page last reviewed 2 September 2024. Read 2026-11-01. source
- NIDDK (NIH). Definition & Facts of Urinary Retention. Last reviewed December 2019. Read 2026-11-01. source
Related on AlternativeMed
Related goals
Support Prostate & Urinary Health → Reduce Sleep Disruption From Nighttime Urination → Build Better Everyday Health Habits → Maintain Health Through Midlife → Stay Asleep Through the Night →
Ingredients, foods and supplements
Saw palmetto and prostate supplements → Saw palmetto → Pumpkin seed → Stinging nettle →
Research, safety and claim-check resources
Men's health starting guide → Men's wellness research and evidence → Stay hydrated for daily wellbeing → Pelvic floor and pelvic pain → Caffeine and energy drinks → Healthy weight basics → Healthy Aging →