The periodic discharge of blood and tissue from the uterus. From puberty until menopause menstruation occurs every 28 days, but does not occur during pregnancy. Also menstruation.
« Back to Glossary IndexThe periodic discharge of blood and tissue from the uterus. From puberty until menopause menstruation occurs every 28 days, but does not occur during pregnancy. Also menstruation.
« Back to Glossary Index