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NCI Dictionary of Cancer Terms

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perineum  listen  (PAYR-ih-NEE-um)

  The area of the body between the anus and the vulva in females, and between the anus and the scrotum in males.

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Drawing of the vulva shows the mons pubis, clitoris, urethral opening, inner and outer lips of the vagina, and the vaginal opening. Also shown are the perineum and anus.