Dysmenorrhea is one of the most common gynecological symptoms, which refers to pain and swelling in the lower abdomen before and after menstruation or during menstruation, accompanied by back pain or other discomfort, which adversely affects the quality of life as well as the health of the patient. The exact cause of dysmenorrhea is not known so far, but the possible causes are: 1, uterine abnormalities, such as cervical stenosis, uterine dysplasia, posterior uterus, uterine fibroids, adenomyosis, etc.; 2, mental factors, mental stress, fear, anxiety; 3, endocrine disorders or endometriosis; 4, pelvic inflammatory disease; 5, IUD; 6, bad habits, such as strenuous exercise during menstruation, cold, staying up late, and like to eat cold and cold food; 7, endometrial cells synthesize prostaglandins significantly more.