Folliculitis is a common skin condition that occurs when hair follicles become inflamed due to infection, irritation, or blockage. The most frequent cause is a bacterial infection, though fungi and ...

Scalp folliculitis is a skin condition that occurs when the hair follicles on the scalp become inflamed. This results in pustules, whiteheads, or other pimple-like bumps on the scalp that can be ...

Hidradenitis suppurativa (HS) and folliculitis are skin conditions that can cause rashes and bumps similar to acne. HS is a chronic condition that tends to be more severe than folliculitis. Both HS ...

A pilonidal cyst, sometimes called pilonidal disease, is a fluid-filled sac that usually occurs on the tailbone at the top of the buttocks. It usually starts as an infection of a hair follicle in the ...