I am concerned about a lump in my right armpit .. I have had a small pea sized ball before there that has come and gone and I thought it was irritation from my bra where the wire sometimes digs in but this time on my period I have a lump and it is bigger then I have had before can this be from my period or what could it be and it hurts a little bit to touch and I m concerned on what it could be
Thanks for your question on Chat Doctor. I can understand your situation and problem. Following are the likely causes for armpit swellings. 1. Boil 2. Sebaceous cyst 3. Enlarged lymph node 4. Lipoma etc. Armpit area is having a lot of hair and perspiration. So possibility of boil and sebaceous cyst is high. Maxilla is having many lymph nodes, so possibility of lymph node enlargement is also there. So better to consult doctor and get done clinical examination of armpit lump and ultrasound examination of Maxilla. First diagnose yourself and then start appropriate treatment. Avoid too much moisture and keep proper hygiene of armpit.