Women do not affect menstruation when they masturbate, because when they masturbate they simply stimulate the vulva and possibly even the vagina, but they do not produce certain changes in the menstrual lining. It is just that when masturbation is carried out, it may produce certain side effects and cause mental dependence, and when substantial intercourse is carried out, it will feel that there is no orgasm. This time will also increase the shadow of the heart, so as far as possible in the future to reduce the occurrence of masturbation, to avoid will have an impact on their mental health. The change of menstruation and each person’s environmental stress, mental factors, including late night and even endocrine hormone disease may produce certain changes. Generally delayed 5-7 days, 5-7 days in advance are normal phenomena, if not reached this range of recommendations can be observed, not everyone’s menstruation is a good day. However, if the delay or advance for a longer period of time, hormone tests, including ultrasound, to determine whether there is any disease of the uterus.