Dysmenorrhea is divided into primary dysmenorrhea and secondary dysmenorrhea. Primary dysmenorrhea refers to painful menstruation without organic lesions in the reproductive organs. It is mainly caused by an increase in chemicals during menstruation that stimulate uterine contractions and enhance vascular spasms, leading to uterine ischemia and hypoxia. This condition is not a disease, and relieving excessive tension can effectively alleviate the pain. However, if the pain is severe and unbearable, oral analgesics can be taken for symptomatic treatment. Secondary dysmenorrhea, on the other hand, is caused by organic lesions in the reproductive organs and is considered a disease.