You may have swollen armpit lumps due to infections, cysts, or vaccines. In severe cases, some armpit lumps could be a sign ...

Armpit lumps can occur in men and women of all ages. However, a lump under the arm could indicate breast cancer. People should perform monthly breast self-exams and report any breast lumps to a doctor ...

In a rare case, painful swelling under a woman's arm turned out to be caused by a wart-like tumor growing from an extra breast in her armpit. The swelling had been growing for four years but had only ...