Possible causes of Armpit pain

15 conditions can cause this symptom. Most common are listed first.

• Brachial plexus injury (shoulder nerve injury) Common Pediatric
• Cellulitis (skin infection) Common Pediatric
• Chemical irritants Common Pediatric
• Contact dermatitis (contact skin irritation) Common Pediatric
• Hidradenitis suppurativa (skin swelling and abscess) Common Pediatric
• Lymphangitis (lymph tissue inflammation) Common Pediatric
• Muscle strain (pulled muscle) Common Pediatric
• Shingles (herpes zoster) Common
• Body lice
• Bone cancer (bone tumor) Urgent
• Cancer (tumor)
• Heart attack Urgent
• Lymphoma (lymph node cancer)
• Sarcoma (soft tissue cancer)
• Scabies