Menstruation tummy is and estrogen level disorders, estrogen level disorders caused by the intestinal hypersensitive reaction state, the general situation does not mean that the intestinal tract has organic lesions. In the case of estrogen level disorders, the intestinal digestion and absorption function is affected, so there will be diarrhea symptoms, usually simple diarrhea, not accompanied by abdominal pain, and the stool was yellow dilute stools, not a lot of times, 2-3 times a day. It is recommended to pay attention to abdominal warmth at this time, eat well-digested food, such as drinking a little hot water, hot porridge, with electric warmer to warm the stomach can be significantly relieved. Before and after menstruation and during menstruation must pay attention to diet, avoid eating a lot of cold food, cold food will lead to the emergence of intestinal dysfunction, leading to further aggravation of diarrhea symptoms.