There are many causes of poor gastrointestinal function. For patients with poor gastrointestinal function, some of them are digestive system diseases, some are hepatobiliary system and pancreatic problems, and even some urinary system problems, all of which can occur. At this time, it is recommended to register with the Department of Gastroenterology, and if you go to a Chinese hospital, there is also a special gastroenterology department. After the appearance of gastrointestinal problems, the doctor will recommend the initial improvement of the gastrointestinal tract and liver, gallbladder and pancreas examination to initially screen for organic lesions of the digestive system, after which other system problems need to be checked, because many diseases can lead to gastrointestinal disorders. Regardless of the disease, the first manifestation is the gastrointestinal tract function problem, because the gastrointestinal tract function problem will lead to nausea, vomiting, do not want to eat and other situations.