I found a lump
under my armpit
about 6 months ago am now getting it looked into. It is painless, indentation formed at lower edge, about 1 cm, hard and immovable. It has been slowly getting larger over the last six months. I have been on antibiotics for 7 days (875mg 2x day)to rule out an abcess, this has not changed the condition of my lump. I am 26, been on birth control pills for 11 years, smoked for 12, mother had breast cancer at 44, started menstrating at age 11, and over weight.