The causes of periumbilical pain after meals may include gastric ulcer, acute gastroenteritis, irritable bowel syndrome, appendicitis and so on. 1. Gastric ulcer: the typical pain is characterized by pain in the stomach after meals, the cause of which is mostly Helicobacter pylori infection, which leads to damage of the gastric mucosa in the case of long-term gastric acid overproduction, manifesting as epigastric discomfort, nausea, acid reflux, and so on. 2. Acute gastroenteritis: acute inflammation of the gastric mucosa, divided into infectious (such as dietary impurity E. coli contamination) and non-infectious (e.g., alcohol stimulation), which can be manifested as colic around the umbilicus after eating, accompanied by fever, loss of appetite and so on. 3. Irritable bowel syndrome: the stimulation of food after eating, resulting in too frequent intestinal peristalsis, can cause pain around the umbilicus after eating, can also be accompanied by diarrhea, increased stool frequency. 4. Appendicitis: due to the blockage of the lumen of the appendix or due to bacterial infection, the typical symptom is metastatic right lower abdominal pain, which is manifested as periumbilical pain in the early stage of the disease. If you have pain around the umbilicus after meals, you should go to the hospital in time to find out the cause and then treat it, so as not to delay the condition.