cryptomenorrhea

[ krĭp′tō-mĕn′ə-rēə ]

n.

Occurrence of the menses without any external flow of blood, as in cases of imperforate hymen.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.