Diarrhea during menstruation is considered to be caused by acute gastroenteritis and indigestion. Very few women suffer from diarrhea due to intestinal dysfunction caused by cold. Because most women eat a lot of fatty food during the menstrual period, the intake of too much meat will increase the digestive burden of the intestines, leading to indigestion and diarrhea. It is necessary to pay attention to the presence of mucus as well as blood to prevent acute gastroenteritis caused by eating unclean diet and infected with bacteria, which can lead to water-electrolyte disorders and even life-threatening possibilities in serious cases. You need to pay attention to improve poor eating habits, eat small amounts of meals, avoid overeating, minimize the intake of greasy, indigestible food, and focus on light, easily digestible food, if necessary, you can take oral intestinal probiotics to regulate intestinal function, or take anti-diarrheal drugs, and pay attention to drink more water to avoid dehydration.