Generally speaking, stomach discomfort may be caused by pregnancy, gastric ulcer, gastric cancer, gastric stones, myocardial infarction and other diseases. Patients can choose obstetrics and gynecology, gastroenterology, gastroenterology surgery and other departments for diagnosis and treatment in combination with their own symptoms. 1. Obstetrics and gynecology: During pregnancy, due to the change of estrogen and progesterone and the increase of human chorionic gonadotropin, it can cause gastrointestinal discomforts, such as nausea, vomiting, abdominal distension, abdominal pain, acid reflux, and loss of appetite. You can go to the obstetrics and gynecology department for consultation and treatment. 2. Gastroenterology: Gastritis, gastric ulcer, reflux esophagitis, gastric polyps and other diseases can cause abdominal pain, bloating, acid reflux, heartburn and other indigestion symptoms, and can also cause upper gastrointestinal bleeding symptoms such as vomiting blood and black stools. You can go to the Department of Gastroenterology for consultation. 3. Gastroenterology surgery: such as gastric cancer, gastric stones, pyloric obstruction, etc., which may cause stomach pain, bloating, weight loss, anemia and other symptoms, and can go to oncology, gastroenterology surgery and other departments for consultation. If stomach discomfort is accompanied by palpitations, chest pain and other symptoms, it may be caused by myocardial infarction, pericarditis, etc., and can also go to the cardiovascular medicine department. You should consult the hospital in a timely manner according to your situation.