An arm abscess or an abscess of the skin is frequently caused due to an infection. There are bacteria present on the skin normally but if these bacteria get access inside the skin via any cut or any hair follicle it can result in the formation of pus, which leads to an abscess.
Arm Abscess - Causes, Symptoms, and Management
An abscess is a pocket of pus affecting any part of the body. Read this article to know more about arm abscesses.