The lack of menstruation will have an adverse effect on women’s health, as follows: 1. If polycystic ovary syndrome manifests itself clinically in the form of scanty menstruation, scanty menstruation, or even the absence of menstruation. If it is left untreated clinically, the endometrium shows abnormal thickening, which can easily lead to endometriosis.2. If the endometrium is damaged after abortion surgery, resulting in uterine adhesions, it will also clinically appear as a lack of menstruation, which can easily lead to infertility in the future.3. If the ovaries fail prematurely, which can easily result in a lack of menstruation, it will prematurely appear as a menopausal symptom, such as hot flashes, sweating, irritability, decreased libido, osteoporosis, and cardiovascular diseases. If menstruation is not normal or even does not come, take blood to check hormone six, you can adjust according to the level of hormone six, if there is no problem with hormones, you need to do hysteroscopy to find out the cause of symptomatic treatment.