The pain on the right side of the stomach like a fork can be seen in the following conditions: a. Liver and gallbladder system diseases: the right upper abdomen is the location of the liver and gallbladder, if patients have pain in this area, they need to pay attention to the possible existence of cholecystitis, gallbladder stones, liver cancer and other conditions, which may be accompanied by nausea, vomiting, aversion to oil, bitterness in the mouth, fever and other symptoms. Second, intestinal diseases: patients with colitis, colon polyps, colon cancer or intestinal obstruction, etc., will have such pain, and may also be accompanied by nausea, vomiting, diarrhea or no bowel movement, no exhaustion and other symptoms. It is recommended to do standing abdominal plain film and colonoscopy to clarify the diagnosis. Acute appendicitis: The typical symptom of appendicitis is metastatic right lower abdominal pain, which initially causes pain in the middle of the upper abdomen with nausea and vomiting, and then shifts to the appendix point in the right lower abdomen, with typical pressure pain and rebound pain.