Gastroenterology consult what department, need to be combined with specific diseases to analyze, you can consult the gastroenterology, gastrointestinal surgery, medical oncology and so on. 1. Gastroenterology: common diseases include acute and chronic gastritis, peptic ulcer, ulcerative colitis, etc., which can be effectively treated by conservative treatment and medication, and can consult gastroenterology. 2. Gastrointestinal surgery: it is common for many kinds of gastrointestinal diseases that need surgery, such as gastric cancer, colon cancer, etc. After surgical resection, the general prognosis is good. 3. Medical oncology: when gastric cancer, colon cancer and other diseases are in advanced stage and cannot be treated by surgery, radiotherapy is needed, and medical oncology can be consulted. If gastrointestinal disease is suspected, timely consultation is recommended.