Drinking cold water during menstruation can very easily cause the stomach to get cold because the temperature is too low, thus indirectly causing the uterus to get cold, which is likely to cause significant abdominal pain. Women who have already caused abdominal pain after drinking water can improve by drinking hot water, brown sugar water, and motherwort granules. After drinking cold water and getting cold, it will cause irregular blood flow to the uterus, which will easily form qi stagnation and blood stasis, causing the endometrial lining to shed irregularly, thus causing obvious dysmenorrhea or changes in menstrual bleeding. Brown sugar water and motherwort granules can effectively promote the shedding of the endometrium, so it can effectively improve the irregular discharge of menstruation caused by cold. If there is no abnormal reaction in the body itself after drinking cold water, there is no need to deal with it, just pay proper attention at a later stage and do not drink cold water again.