Aunt is menstruation, no pain during menstruation is normal, women do not need to worry too much. Menstruation is a physiological phenomenon in which the endometrium periodically proliferates, sheds, and bleeds vaginally due to follicular development and changes in the body’s hormone levels as a result of the maturation of a woman’s ovarian function. Most women will only experience fatigue, vaginal bleeding and lower abdominal cramping during their menstrual period, and will not experience pain, so it is normal for women not to experience pain during their menstrual period, and women do not need to worry too much about it. Pain during menstruation, clinically known as dysmenorrhea, is mainly due to high levels of prostaglandins in the patient’s body, resulting in significant contractions and spasms in the uterus. At the same time, patients who suffer from endometriosis, pelvic inflammatory disease and other gynecological diseases may also experience dysmenorrhea. To summarize, no pain during menstruation is normal, indicating that the woman’s body is relatively healthy. On the contrary, women who experience dysmenorrhea need to be alerted to diseases such as pelvic inflammatory disease (PID) in addition to elevated hormone levels in the body.