Early pregnancy diarrhea common causes: 1, pregnancy due to the uterine body increases, pressure and stimulation of the rectum, there is an increase in the number of bowel movements, caused by diarrhea symptoms, but the symptoms are mild and not accompanied by other symptoms. 2, dietary errors caused by diarrhea, such as eating a large number of cold, spicy and stimulating, unclean food, or abdominal cold, these factors can lead to gastrointestinal dysfunction, dyspepsia, causing Diarrhea. When you are pregnant, you should eat a regular diet, with a light, easy-to-digest diet, with meat and vegetables, balanced nutrition, avoid overeating, avoid spicy and stimulating foods. 3, acute gastroenteritis caused by bacterial or viral infection, often accompanied by nausea, vomiting, abdominal pain, diarrhea, fever and other symptoms, this situation, it is recommended to go to the hospital in time. 4, pregnancy due to excessive mental tension, insomnia, anxiety, etc., also can cause diarrhea symptoms.