Causes of lumps in the armpit generally include cysts, infections, and swollen lymph nodes. Some armpit lumps may be harmless, whereas others can be a potential sign of breast cancer or infections.

Armpit pain is a common complaint that can have many causes, from mild muscle injuries to swollen lymph nodes and severe skin infections. In most cases, armpit pain isn't a reason to worry, but it ...

Armpit pain can be caused by many issues, from muscle strains to swollen lymph nodes. Here are possible causes of underarm pain and when to see a doctor.