Diarrhea during menstruation is normal and is considered to be caused by menstrual diarrhea. Diarrhea during menstruation is mostly seen in women with cold body, which is accompanied by uterine cold, such as low menstrual flow, dark color, and lumpy shedding. In order to avoid menstrual diarrhea during menstruation, it is recommended to pay attention to the abdomen to keep warm and avoid the abdomen from getting cold, so as not to induce menstrual diarrhea. Especially after summer, it is recommended to choose long pants during menstruation, pay attention to keep the abdomen warm, and avoid blowing directly under the electric fan or air conditioner, so as not to cause the abdomen to get cold. Diarrhea during menstruation does not require special treatment, just pay attention to abdominal warmth, and focus on digestible pasta and soups, and eat less food with coarse fiber. Easily digestible food can reduce the burden on the gastrointestinal tract, which is very helpful in relieving menstrual diarrhea.