Pregnant women always have diarrhea is a very bad phenomenon, the reasons for which are mainly the following: First, consider that it may be caused by an uncontrolled diet during pregnancy. The food consumed is too complex, resulting in gastrointestinal digestive disorders or irregular diet and unclean diet, which may lead to diarrhea. Second, suffering from colorectitis, intestinal inflammation is a common cause of diarrhea, mainly due to changes in the permeability of the intestinal mucosa resulting in the discharge of large amounts of water from the intestinal cells, thus causing diarrhea to occur due to increased water in the stool. Third, it may be the stimulation of the external environment leading to mood swings, prone to irritable bowel syndrome, mood swings during pregnancy is relatively large, if the patient itself suffers from irritable bowel syndrome, more likely to be stimulated by the emotions brought about by always diarrhea.