There are several reasons for always having diarrhea after pregnancy: First, the gastrointestinal tract of pregnant women is fragile and irregular in diet due to early pregnancy reaction in early pregnancy, which can stimulate the gastrointestinal tract of pregnant women to produce diarrhea symptoms. Second, it is also possible that the diarrhea is caused by the usual inattention to personal diet, often eating cold, irritating food. Third, it is possible that the symptoms are caused by infection of the digestive system, and other diseases, such as gastroenteritis, cannot be completely excluded. If the diarrhea is accompanied by symptoms of dehydration such as dry mouth and weakness, it is recommended that timely treatment be carried out, and saline glucose can be injected by drip to prevent electrolyte disorders, and probiotics and other digestive drugs can be taken under the guidance of a doctor. But do not use drugs blindly to avoid stimulation of the body.