What is the problem with pressing pain around navel?

Umbilical pain is more common in gastrointestinal diseases, intestinal ascariasis, acute appendicitis, appendicitis, chronic mesenteric vascular embolism ischemia, small intestine torsion, acute bacterial food poisoning, duodenal diverticulum, allergic purpura and so on can show such symptoms. General examination needs to check stool smear X-ray abdominal B ultrasound, CT, gastroscope, duodenoscope, colonoscopy and cholangiography, and blood test immune blood test and so on. Physical examination is generally examined abdominal tenderness rebound pain, there is no membrane irritation sign.