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.


Menstrual cycle The menstrual cycle is a recurring cycle of physiologi ...
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Dysmenorrhea (Menstrual Cramps)
... What is dysmenorrhea? Dysmenorrhea is the medical term for menstrual cramps. There are two types of dysmenorrhea: "primary" and "secondary." Primary dysmenorrhea is common menstrua...
Source: Cleveland Clinic

... Menstruation is a woman's monthly bleeding. It is also called menses, menstrual period, or period. When a woman has her period, she is menstruating. The menstrual blood is partly blood and partly ...
Source: National Women's Health Information Center


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