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月经(menstruation)是非妊娠子宫内膜生理性的周期性剥脱和出血,是卵巢激素周期性变化的结果,是女性生殖功能成熟的标志之一[1 ,2 ] 。1 月经的生理正常发育的女性,其月经在青春期(约9～1 6岁时)初潮,围绝经期(约4 4～5 4岁时)终止。青春期和围绝经期的月经周期可不规律,多为
Menstruation is a non-pregnant endometrial physiological period of exfoliation and bleeding, is the result of cyclical changes in ovarian hormones, is one of the signs of female reproductive maturity [1,2]. 1 menstrual menstrual normal development of women, their menstruation in adolescence (about 9 to 16 years old) menarche, perimenopausal (about 44 to 54 years old) to terminate. Adolescent and perimenopausal menstrual cycle may be irregular, mostly