What Might Be Causing a Pinching Sensation under My Armpit?

A pinching sensation in your armpit might be because a nerve in that area is getting a little irritated. This is similar to what some people feel with a condition called axillary web syndrome, where small, string-like bands form under the skin and can catch or pull at the tissues. Axillary web syndrome usually happens after an injury or overuse, and while it is not common, it can cause a sharp or pinching sensation. In many cases, these symptoms are temporary and clear up on their own without any major problems. However, if the feeling lasts a long time or gets worse, it’s a good idea to talk to a doctor. They can check if it’s just a small injury or nerve issue, and help you decide if you need more care or treatment.