Pimple Under Skin Under Armpit. It can develop on any part of your body. If You Have a Lump on Your Neck Check It ASAP.

However minor injuries are the main cause of the condition in the body. It is often caused by shaving. 4 An unnamed woman.
Pimples or pimple-like bumps in your armpit could appear as a small rash with a collection of bumps or you might just have one or 2 pimples.
A blind pimple refers to acne that has developed beneath the skins surface. Even a small break in your skin can allow bacteria most often Staphylococcus or Streptococcus to get in and begin to grow. The following are less common causes of armpit lumps. It can appear under the armpits on the scalp on the chin around the nose and on lips.