When acute inflammation occurs in the abdominal cavity, the pain is very severe, such as gallstones combined with acute cholecystitis, acute appendicitis, gastric ulcer, acute pancreatitis, etc. In case of gallbladder stones combined with gallbladder inflammation, the pain is usually located in the right upper abdomen and can be accompanied by nausea, vomiting and other symptoms, and gallbladder ultrasound can see stones in the gallbladder. In the case of acute appendicitis, the pain is located in the lower right abdomen and is very intense in nature, and there is also pain when pressing the abdominal wall with the hand. In the case of gastric ulcer, the pain is located in the upper and middle abdomen under the glabellar process, and gastroscopy can be performed to clarify the diagnosis. In acute pancreatitis, the pain is in the upper abdomen, and the pain is knife-like and very intense in nature, and blood and urine amylase and abdominal CT examination can be performed for a definite diagnosis.