Small, painful lump in armpit?

Question

Any ideas as to what that could be? It's under my left arm, and it's smaller than pea sized. I just noticed it today.



Also, please, save your sarcasm for someone who cares. I'm not interested. I'm not looking for a medical diagnosis. I'm not looking for someone to comfort me into not seeing a doctor. If it persists, I will see a doctor. I'm just wondering what it could be.

Answer 1

if it's under one inch it could be an infection. the fact that it's painful is a good sign. if the lump feels rubbery and moveable then that's a better sign. if it's hard and unmoveable that doesn't go away in 1-2 weeks then see a doctor.

Answer 2

Lumps in the armpit have various causes. Cysts and infections on the surface of the skin of the armpit may be caused by shaving or use of antiperspirants (as opposed to deodorants). This occurs most frequently in adolescents just beginning to shave. Abscesses under the skin may also produce large, painful lumps in the armpit.

Lumps may occur when lymph nodes are swollen due to bacterial or viral infections, vaccinations, and cancer.

Lymph nodes are filters that can catch infectious organisms or cancerous tumor cells. When they do, lymph nodes increase in size and are easily felt. A breast self-examination should always include the armpit because breast cancer can enlarge the armpit lymph nodes even when the breast itself seems perfectly normal.

Answer 3

It could be a cyst, a boil, or ingrown hair, try applying a hot moist cloth to it and see if it comes to a head.