Hello. I am 19 years old, 55, and 200 pounds. (in case you need to know...) I have a small lump underneath my armpit. When I fist found out about it, it sort of hurt, but now its just there. I went to see a docter and they said to use a clean razor when shaving and if it doesnt dissapear, to see them again. Just recently though, I pooped blood. (by recent, I mean 2 hours ago...)
Hi, dairy have gone through your question. I can understand your concern. You may have ingrowing hair or infection of hair follicles or some other lesion.  You should go for examination. If needed to take a course of antibiotics or go for biopsy according diagnosis.  Consult your doctor and take treatment accordingly. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using Chat Doctor. Wish you a very good health.