The left upper abdominal discomfort may be caused by indigestion, chronic gastritis, pancreatitis, etc., and need to take medication and surgical treatment for the cause of the disease. 1. Dyspepsia: For dyspepsia caused by left upper abdominal discomfort, you can use mosapride, domperidone and other gastrointestinal stimulants, as well as digestive enzyme preparations, such as compound digestive enzymes, multi-enzyme tablets, etc. under the guidance of the doctor. 2. Chronic gastritis: If chronic gastritis is caused by the left upper abdomen discomfort vaguely stuffy and uncomfortable, you need to follow the doctor’s instructions with omeprazole, domperidone and other acid-suppressing drugs acute gastrointestinal dynamics drugs. For chronic gastritis caused by Helicobacter pylori infection, you can follow the doctor’s instructions to take the quadruple therapy, that is, two antibiotics + bismuth + proton pump inhibitors, commonly used drugs, including clarithromycin, metronidazole, pantoprazole, bismuth potassium citrate, and so on. 3. Pancreatitis: Pancreatitis can also lead to discomfort in the upper left abdomen hidden stuffy uncomfortable, at this time the patient needs to use pancreatic enzymes under the guidance of the doctor active growth inhibitors and their analogs, such as octreotide. Some patients can also follow the doctor’s instructions with omeprazole, pantoprazole and other proton pump inhibitors. In addition, patients with severe pancreatitis also need to take percutaneous puncture drainage, laparoscopic surgery, or pancreatic duct drainage surgery, pancreatectomy treatment. Left upper abdominal discomfort hidden stuffy uncomfortable may also be gastric ulcer, gastric cancer and other causes, the patient needs to consult a doctor in time, the doctor will be for the condition of treatment.