To check the intestinal tract, you can register for gastroenterology, anorectal surgery, gastrointestinal surgery or general surgery. If you simply want to check the intestinal tract, you need to register for gastroenterology, its most specialized. Because to do e-colonoscopy, e-colonoscopy is the most accurate examination method to check the intestinal tract. E-colonoscopy can look at the whole intestine, and if a lesion is found, a biopsy can be taken directly or a microscopic treatment can be performed. If it is caused by intestinal tumor, it needs to be followed up and can be registered with medical oncology or surgical oncology. In short, the preferred department is gastroenterology. If there are organic lesions in the intestine, regular medication treatment should be given under the guidance of a specialist. In terms of diet, we need to pay attention to a light diet and develop good eating habits.