There are many causes of diarrhea without pain in the stomach, and it is an early sign of many conditions. If the situation of no stomach pain but diarrhea occurs for a long time, it is recommended that patients go to the hospital for a detailed examination at the first time. The general stomach does not hurt but diarrhea may be due to the following circumstances: 1, eating too much support, the burden on the stomach and intestines. 2, eat food that stimulates the stomach, such as spicy, overnight unhygienic, expired food, street unhygienic food, etc. 3, the physique can not eat seafood, eat a large amount of seafood, resulting in intestinal discomfort caused by diarrhea. 4, the weather suddenly becomes cold, did not make timely warming behavior leading to cold, will also lead to the appearance of diarrhea.