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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Menstruación

Menstruation (MEN-stroo-AY-shun)
Periodic discharge of blood and tissue from the uterus. From puberty until menopause, menstruation occurs about every 28 days when a woman is not pregnant.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.