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    Cyst

    Cyst

    A cyst is a sac-shaped structure in the body. Cysts usually are filled with fluid, which may be blood, clear fluid, or pus.

    A cyst can be normal, abnormal, or, in rare cases, cancerous. In some cases, a cyst may be drained either with a needle or by cutting it open, or it may be removed entirely.

    Last Revised: February 7, 2012

    Author: Healthwise Staff

    Medical Review: Patrice Burgess, MD - Family Medicine & Kirtly Jones, MD - Obstetrics and Gynecology

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