There are more reasons for women to have dysmenorrhea every time they have a period, and precise diagnosis and intervention are needed, as follows: 1. Primary dysmenorrhea: usually primary dysmenorrhea is related to genetics, and women will have dysmenorrhea symptoms every time they have a period. Secondary dysmenorrhea: 1. cervical diseases: such as cervical stenosis, erosion and other cervical diseases, patients will have dysmenorrhea every time they have menstrual period. 2. other gynecological problems: such as chronic pelvic inflammatory disease, adnexitis, ovarian cysts, uterine fibroids and other gynecological diseases, will make patients have dysmenorrhea during menstruation.