If your stomach hurts when you have your period, drinking brown sugar water can be useful. The main purpose of brown sugar water is to make the menstrual blood flow more smoothly, so as to reduce the accumulation of menstrual blood in the uterine cavity, stimulating the smooth muscle contraction of the uterus and causing stomach pain, so drinking brown sugar water is useful. In addition, brown sugar water has the effect of relieving menstrual fatigue, so once the stomach pain during menstruation can drink brown sugar water to give relief, but brown sugar water must drink hot, drinking cold brown sugar water is not useful, and also recommended that women with lower abdominal pain during menstruation is best to go to the hospital for examination after the period is completely clean. The main purpose is to find out what causes the pain in the stomach, such as whether there are abnormalities in the development of the uterus or endometriosis, pelvic inflammatory disease, etc., as these may cause menstrual pain. Then, according to the results of the examination, treatment will be given so as to get rid of the symptoms of menstrual pain completely.