A member asked:

I have a lump under my arm i have had it for years sometimes is swells a hurts. if i push on it pus and blood come out what can it be.

5 doctors weighed in across 2 answers
Dr. Bradford Romans answered

Specializes in Internal Medicine

Hydradinitis: H supperativa is a chronic condition that some people develop under their arms with draining tender lumps.It can be difficult to treat and manage.I suggest you see a dermatologist.

Answered 2/26/2013

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Sebaceous cyst: Possibly an infected sebaceous cyst. Consider seeing your doctor for evaluation.

Answered 9/28/2016

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