It is generally considered that there may be gastroenteritis possible, common causes such as unclean diet, germ infections, such as bacteria, viruses or dysentery bacilli can occur, in addition and their own digestive system germ infections, dysbiosis also have a relationship. Common diseases include acute gastroenteritis, gastrointestinal dysfunction, ulcerative colitis or Crohn’s disease, or immune disorders, which usually cause abdominal pain, diarrhea and nausea. If the above symptoms appear and recur, it is recommended to consult a hospital for colonoscopy and blood tests to clarify the cause. In addition to the treatment, we must pay attention to the diet, eat more vegetables and fruits, and eat less spicy and stimulating food.