Cold in the uterus can cause dysmenorrhea, but dysmenorrhea is not always caused by cold in the uterus. There are many causes of dysmenorrhea, including primary dysmenorrhea and secondary dysmenorrhea. Primary dysmenorrhea is mostly functional and usually has no organic lesions. Secondary dysmenorrhea is mostly caused by diseases, such as pelvic inflammatory disease, endometritis, adenomyosis, and fibroids. Therefore, women with dysmenorrhea are either caused by uterine cold or due to diseases, so they should actively look for the cause and give effective treatment according to the examination results. In general, if a woman has a relatively cold body, it may be caused by uterine cold, so she can pay attention to keeping warm during her menstrual flow and keep her vulva clean and hygienic.