Each period is a woman in the entire reproductive life, periodically, about once a month by the shedding of the endometrial vaginal discharge; these bloody secretions called menstruation or menstrual blood.
Menstrual cycle refers to the last menstrual period is the most recent one day away from the treatment period, calculated from the first day of bleeding. However, take note, the last menstrual period and usually refers to the same duration and the amount of walking, abnormal vaginal bleeding should not be mistaken for the first day of menstrual bleeding to the start of the menstrual cycle, twice the first day of menstrual interval time called the menstrual cycle. Features: In order to meet to receive a fertilized egg implants and growth, angiogenesis, intimal thickening; normal ovarian hormones affect the female body and control of endometrial changes, such as did not receive a fertilized egg, thickening of the endometrial will fall off, accompanied by bleeding. Cyclical changes in the endometrium are menstrual cycle.
Therefore, the calculation of the menstrual cycle should include the time of menstruation. Some women count only the clean time period, so that the menstrual cycle may be shortened, and some women often-private prosecution clinically abnormal menstruation, menstrual cramps twice a month. In fact, careful calculation, the beginning and end of each cramp 1 is normal. Normal menstrual cycle is 28-35 days, the cycle length can vary from 7-10 days in advance or after the fault can be considered the normal range, as long as you maintain a certain degree of regularity can not be considered irregular menstruation.
Beijing Tibetan Hospital gynecologist, said the duration of menstrual cramps usually 3-7 days, in 100 ml of blood loss within the first 2-3 days for most. Menstrual blood generally dark red, not frozen, in addition to blood, but also contains fragments of the endometrial, cervical mucus and vaginal epithelial cells. Female menstrual period generally asymptomatic, a few people may have lowered abdominal or lumbosacral sense of falling, breast tenderness, constipation or diarrhea, headache and discomfort, generally do not affect their daily work, study and life.
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