There is no fixed pain intensity for how painful menstrual cramps are for a woman’s great aunt, and there are individual differences in the severity of pain for patients. Menstrual cramps are clinically referred to as menstruation. When menstruation occurs, the level of prostaglandins in the endometrium of a woman’s uterus rises, which can cause ischemia and hypoxia of the uterine smooth muscle, thus inducing dysmenorrhea. The intensity of pain in most women is within the tolerable range, and some women who have poor tolerance for pain can be relieved by taking oral medications such as ibuprofen and diclofenac sodium. Some women’s dysmenorrhea is secondary to endometriosis, adenomyosis and other diseases, this secondary dysmenorrhea is usually heavier, can be progressively aggravated, seriously affecting the daily life, can be relieved by oral medroxyprogesterone, mifepristone and so on, and if necessary, surgical treatment. If the patient has the need for medication, it should be done under the guidance of a professional physician, so as not to delay the condition and lead to adverse consequences.