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Cyst

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Updated April 19, 2014

Grade IV - Cystic Acne

Acne Cysts

Photo © A.D.A.M.
Definition:

An inflamed acne lesion occurring when there is a deep rupture in the follicle wall. Sebaceous matter, cellular debris, and bacteria spill into the dermis. A membrane then forms around the infection within the dermis.

Cysts feel like soft, fluid-filled lumps under the skin's surface. The most serious form of a breakout, cysts are large, red, and very painful.

Also Known As: Cystic breakouts, cystic acne.
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