Hidden pain in the left upper abdomen under the ribs after meals may be caused by pancreatitis, gastric ulcer, rib fracture and so on. 1. Pancreatitis: When people eat, the pancreas secretes pancreatic fluid to promote food digestion. If the pancreatic duct is blocked for some reason, resulting in the pancreatic juice not being discharged properly, pancreatitis is easily induced. The pancreas is located in the left upper abdomen, so pancreatitis can easily cause the symptom of hidden pain under the rib cage in the left upper abdomen. 2. Gastric ulcer: As a result of long-term drinking and smoking or Helicobacter pylori infection can lead to gastric mucous membrane damage, which in turn causes gastric ulcer. If you eat spicy and irritating food, it will cause some stimulation to the stomach wall. If the gastric mucosa is damaged, the clinical symptom of pain below the left rib cage will appear after meals. 3. Rib fracture: It may be due to the fact that the patient has had a rib fracture on the left side, which has not healed completely. After meals, due to visceral expansion, resulting in local soft tissue extrusion, thus appearing in the left epigastric subcostal hidden pain symptoms. Patients with left epigastric subcostal pain after meals should go to the hospital in time to clarify the cause of the pain and follow the doctor’s instructions for treatment.