The causes of stomach and back pain mainly include acute and chronic cholecystitis and acute pancreatitis, as follows: 1. Acute and chronic cholecystitis: an acute attack of cholecystitis can cause pain in the right upper abdomen, and the pain involves the back and shoulders. This cause of stomach and back pain requires a visit to the general surgery department of the hospital to do upper abdominal ultrasound as well as routine blood, liver and kidney function, and blood biochemical tests to clarify. If the diagnosis of cholecystitis is confirmed, it is necessary to apply antibacterial drugs and symptomatic nutritional support treatment; 2. Acute pancreatitis: acute pancreatitis is mostly due to long-term alcohol consumption, resulting in pancreatic secretion dysfunction and pancreatitis attacks. Acute pancreatitis causes pain in the stomach and back, the pain is intense in nature and severe, and can be clarified by performing CT or ultrasound examination of the upper abdomen. Once the diagnosis is clear, it is necessary to fast, with the application of octreotide, antibiotics, rehydration, nutritional support and other treatments.