The reason why diarrhea occurs during menstruation is mainly due to the shedding of the endometrium during menstruation, which secretes a large amount of prostaglandins. Prostaglandins not only contract the smooth muscle of the uterus, but also contract the smooth muscle of the gastrointestinal tract and speed up gastrointestinal motility, so diarrhea can occur. It is recommended that in daily life: 1. pay attention to diet, especially when menstruation can not eat cold food. 2. pay attention to warmth, do not drink frozen drinks during the menstrual period and soak your feet in hot water every day. 3. it is recommended that you can eat more Huai Shan in daily life to strengthen the spleen and stomach. 4. if diarrhea occurs during the menstrual period, you can also take Spleen and Intestine Pill, which is recommended to be taken continuously for 7-10 days and can be effective. relieve diarrhea during menstruation.