Often, armpit pain is a simple case of a strained muscle. "The most common causes include repetitive or traumatic injuries to the muscles and tendons that insert onto the arm bone," says Lin.

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. IE 11 is not supported.

COVID vaccinations can cause a range of mild symptoms including armpit pain, but these shouldn't be a concern ... "The COVID-19 vaccination is given in the arm and the closest lymph nodes ...

Your armpit is a sensitive area, so it's not uncommon to experience discomfort there. If you have pain under your left armpit, you may be wondering what might be causing it and what should you do ...

Cysts and fatty growth can also form lumps under the arm. Axillary is the medical term for the armpit area. This article explores causes, symptoms, diagnosis, and treatment for armpit lumps.