Reasons why a woman does not get her period: 1. Pregnancy can cause a woman not to get her period. Whether the pregnancy is carried in the uterine cavity or outside the uterine cavity, it can cause a woman not to have her period and to experience menopause. 2. A woman not having her period can also be seen in menstrual disorders. The woman’s menstrual disorder is affected by a variety of factors, such as mood swings, mental tension, changes in the surrounding environment, etc., can cause the woman not to menstruate. 3, the woman does not come to menstruation, but also seen in premature ovarian failure, ovarian function decline or post-menopausal women. In this case, further examination of sex hormone six is needed to make a clear diagnosis.4. Women who do not get their periods can also be seen with damaged endometrium, such as history of uterine cavity operations: such as abortion, diagnostic scraping, etc., causing damage to the endometrium, which can also cause the occurrence of non-menstruation.5. Women who do not get their periods can also be seen with uterine cavity adhesions and cervical canal adhesions.