The dysmenorrhea can be caused by organic lesions, gynecological inflammation and primary dysmenorrhea, as follows: 1. organic lesions, such as endometriosis of the pelvis or ovaries, adenomyosis, patients need to further examine the gynecological ultrasound to clarify the diagnosis, according to the examination can consider surgery if necessary; 2. gynecological inflammation, mostly seen in pelvic inflammatory disease, need further oral antibiotic drugs Most of them can choose cephalosporin antibiotics combined with metronidazole antibiotics; 3. Excluding organic lesions, gynecological inflammation is considered to be a local prostaglandin rise in the endometrium, causing primary dysmenorrhea. The patient can be treated with oral pain medication, such as Yuanhu painkiller tablets or Fenbid.