This spreads sebum, an oily substance that lubricates skin. As a result, an abscess—an enclosed pocket of pus and dead tissue—forms. In contrast, cysts aren't infections. The cells of the ...

A sebaceous cyst, or Steatocystoma, develops from oil-producing glands (sebaceous glands) in the skin. When these glands ...

The types of acne are blackheads, whiteheads, pustules, papules, nodules, and cysts. A papule is a raised ... Skin debris (aka keratin) mixes with sebum — the natural oil in your skin ...