Some women experience severe dysmenorrhea, where the pain can radiate to the root of the thigh, affecting their normal sleep and concentration during the day, which in turn affects their work efficiency. Some women experience such severe dysmenorrhea during their menstrual period that they even need to take leave from work to rest at home. Additionally, some women may suffer from secondary dysmenorrhea, which is linked to underlying diseases. For example, conditions like adenomyosis, endometriosis, and endometrial polyps can alter the internal environment of the uterine cavity and change its coagulation state, leading to increased menstrual flow. This can cause anemia due to blood loss and also affect normal pregnancy.