Diarrhea in early pregnancy may be caused by elevated hormone levels in the body, intestinal infections, cold and other factors, and requires timely intervention and treatment under the guidance of a professional doctor to prevent symptoms from worsening. Common causes and treatments: 1. Cold: Cold stimulation leads to gastrointestinal tract dysfunction, which can also cause diarrhea, so pregnant women need to pay attention to keeping their stomach warm when they sleep to avoid getting cold, and regular rest and rest to ensure sleep quality. If diarrhea is serious, antidiarrheal drugs such as montelukast can also be used under the guidance of a doctor, but unauthorized use of drugs is strictly prohibited to prevent the impact on the fetus; 2. Elevated hormone levels: In early pregnancy, due to the gradual increase of progesterone in the body, it will weaken gastrointestinal motility, and because it takes longer to empty the stomach, if improper diet causes indigestion during the period, it may lead to diarrhea. Patients should pay attention to dietary hygiene and avoid raw and cold food to prevent illness from entering through the mouth. If the diarrhea is serious, timely medical treatment is required. 3. Intestinal infection: Diarrhea can be caused by viral and bacterial infections of the digestive tract. Amoxicillin or cephalosporin antibiotics that have less effect on the fetus can be used under the guidance of a professional doctor. If it is caused by common viral infection, symptomatic treatment should be given, together with montelukast to protect the intestinal mucosa and bifidobacteria to adjust the intestinal flora. If the diarrhea is serious and the pregnant woman has symptoms of dehydration, she needs to be hospitalized, timely anti-inflammatory, rehydration, correction of electrolyte disorders, and supplementation of vitamins, amino acids and other nutrients as appropriate. Precautions: Along with treatment, patients should pay strict attention to diet and warmth, avoiding cold in the waist and small abdomen, and also try to choose warm and soft, easily digestible food, such as millet porridge and noodles. You can eat more nutritious foods such as meat, eggs and dairy products as well as fresh fruits and vegetables, and avoid raw and cold foods to prevent bacterial infection of the intestines.