Causes of diarrhea: abdominal cold. Summer air conditioning temperature is too low, winter sleep did not cover the quilt, the stomach is cold, these are easy to cause diarrhea, in general drink some light salt water symptoms can be relieved. Unhygienic diet. Some roadside stalls on the food hygiene is very poor, the body immune system weak people eat these foods, it is easy to cause diarrhea. Poor digestion. People with weak gastrointestinal digestive function who overeat can easily cause indigestion and then diarrhea symptoms. Bacterial infections. Many bacterial infections can also cause diarrhea symptoms, and most of the bacteria enter the body by way of diet. Chronic diseases. Many people with chronic diseases are prone to diarrhea symptoms, mainly because the medications used to treat chronic diseases generally inhibit the growth of beneficial flora in the intestine, and the number and type of colonies are unbalanced. Parasitic diseases. The reason meat generally needs to be heated sufficiently before eating is because there may be parasites in it, and people who eat this insufficiently heated food are prone to diarrhea.