For Menstruation we have terms and definitions in 14 topics. The topics are Contraception, Female Health, Gynecological, Gynecology, Health, Hormone Replacement Therapy, Human Body, Huntingtons Disease, Lymphoma, Medical, Science, Sex, Sexual Health and Sexually Transmitted Diseases.

Period, menstrual flow. If an egg is not fertilized within a certain amount of time, the estrogen and progesterone levels lessen gradually. When the levels of these hormones get too low to support the thickened endometrium, the outer two thirds of the endometrium is shed. The inner third stays to create a new lining in the uterus so that the cycle can begin again.
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Vaginal bleeding resulting from the process of periodic shedding of the endometrium. The first day of menstrual flow marks the beginning of a new menstrual cycle.
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A cyclical process of the endometrium shedding its lining, along with discharge from the cervix and vagina, from the vaginal opening. This process results from the mature egg cell (ovum) not being fertilized by a sperm cell as it travels from one of the ovaries down a fallopian tube to the uterus, in the process called ovulation.
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A cyclical process of the endometrium shedding its lining, along with discharge from the cervix and vagina, from the vaginal opening. This process results from the mature egg cell (ovum) not being fertilized by a sperm cell as it travels from one of the ovaries down a fallopian tube to the uterus, in the process called ovulation.
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A cyclical process of the endometrium shedding its lining, along with discharge from the cervix and vagina, from the vaginal opening. This process results from the mature egg cell (ovum) not being fertilized by a sperm cell as it travels from one of the ovaries down a fallopian tube to the uterus, in the process called ovulation.
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The monthly discharge through the vagina of blood and tissue from the shedding of the lining of a nonpregnant uterus.
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the periodic flow of blood and cells from the lining of the womb, occurring about every 28 days. Menstruation commences and continues, unless interrupted by pregnancy, until the menopause, which occurs around the age of 50.
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The discharging of blood, secretions, and tissue debris from the uterus that occurs in non-pregnant females of childbearing age at approximately monthly intervals.
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A periodic discharge of blood and tissue from the uterus. Until menopause, menstruation occurs approximately every 28 days for about a week when a woman is not pregnant.
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The shedding of the lining of the uterus during the menstrual cycle
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Shedding of the lining of the uterus in nonpregnant females and characterized by bleeding for a few days each month
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The more-or-less monthly sloughing of the uterine lining which results in a bloody discharge from the vaginal opening.

The flow of blood, fluid, and tissue out of the uterus and through the vagina that usually lasts from three to five days.
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When a woman has a period.
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