Menstrual pain can be caused by several different reasons, the main reasons are as follows: First, it may be the symptom of dysmenorrhea, which is a very common gynecological symptom and cannot be called a disease reaction, but may be related to the hormonal content of the body and the shedding of the uterine lining. Secondly, menstrual pain may be caused by uterine cold or poor discharge of menstrual blood. Women with uterine cold problems during menstruation will stimulate the body, resulting in the normal discharge of menstrual blood, uterine contraction, pain and vascular spasm, which has a greater impact on the body. Third, may be overworked or after strenuous exercise and menstrual pain symptoms, usually pay attention to more rest, avoid strain, and do a good job of body health care.