Menstruation is the monthly occurrence in women's lives where their bodies shed the lining of the uterus, resulting in approximately four to seven days of bleeding and discharge through the vagina. During menstruation, women lose an average of 10 to 80 mL of menstrual blood along with some endometrium lining that looks like tissue mixed with blood. People sometimes misinterpret this tissue-like substance for an early miscarriage, but it is in fact a normal part of women's menstrual cycles.


Women typically experience a range of symptoms associated with menstruation, particularly uterine cramps (“dysmenorrhea”) that are caused by the contractions of the uterine muscles as the uterus expels the blood from the woman's body. Menstruation typically occurs from early teenage years until mid-to late-40s, though ...

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