Hidden pain in the left upper abdomen is considered to be caused by chronic gastritis, gastric ulcer and other digestive disorders, and may also be caused by heart disease and other factors. Under the guidance of a doctor, targeted treatment, including drug therapy, interventional therapy, extracorporeal shock wave lithotripsy treatment. 1. Digestive system diseases: chronic gastritis, gastric ulcer can have symptoms of left upper abdominal pain; chronic gastritis can be prescribed to take omeprazole, cimetidine and other antacid medications, aluminum thioglycollate and other gastric mucous membrane protectants; gastric ulcer with Helicobacter pylori infection can be prescribed to take amoxicillin, metronidazole and other medications, coadministered with omeprazole, bismuth potassium citrate and other medications. 2. Heart disease: stable angina patients can take nitroglycerin when the pain attacks, but also can take aspirin, captopril and other drugs, if necessary, percutaneous coronary intervention, coronary artery bypass grafting treatment. It is recommended to go to the hospital to consult the doctor for judgment and individualized treatment plan, and the medication should be used according to the doctor’s prescription.