ARMPIT BUMP: This sound like a cyst or an infected cyst. Do see a dermatologist.
Answered 1/14/2019
6.1k views
Probably benign: Small infections and cysts of the skin under the armpit are common and not a cause for alarm. However if it keeps growing or is deeper than the skin (does it move when you move the skin?) it may represent a lymph node, and should be evaluated.
Answered 1/5/2019
6k views
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