Due to the microenvironmental and anatomical and physiological characteristics of the pediatric gastrointestinal tract, abdominal pain in pediatric patients is significantly different from that in adults. What are the typical manifestations for easy identification? 1, intestinal roundworm: roundworm parasites in the human intestine, mild abdominal pain can occur, if too many roundworms, in the intestinal tract agglomerate into clusters, causing intestinal obstruction, then it will occur severe continuous abdominal pain, accompanied by vomiting. If the child usually has poor appetite, florid-like facial skin and a history of chronic colic, intestinal roundworms need to be suspected, and the child should be routinely dewormed every year or every two years at the age of 3-5. 2.Biliary tract roundworm: roundworms have the habit of drilling holes, and sometimes they flee into the bile ducts, and children will have severe upper abdominal pain, roll over in bed or on the floor, cry and scream. Biliary roundworm children sometimes have intermittent jaundice anorexia anorexia oil. 3, infant intestinal flatulence: manifested as the infant suddenly cries loudly, abdominal distension, two fists clenched, curled between the legs and abdomen. Most commonly seen in small infants within one year of age, due to over-eating milk, sugar or swallowed a large amount of gas in the abdomen to produce abdominal distension and abdominal pain. 4, intussusception: children with intussusception can have diarrhea, enteritis before the onset of the cause, a few children have ileus organic lesions, paroxysmal abdominal cramps, accompanied by vomiting, the most characteristic sign is blood in the stool or jam-colored. The most characteristic sign is blood in the stool or jam-colored. There are paroxysmal cries and sleep at intervals. 5, acute gastroenteritis: children have vomiting and diarrhea in addition to abdominal pain. The stool is thin water or thin paste, often accompanied by fever. There is a history of unclean diet. 6, appendicitis: abdominal pain is characterized by starting from the upper abdomen or around the navel, gradually shifting to the right lower abdomen, abdominal pain refusing to press, this is the most characteristic performance, some children are accompanied by vomiting, diarrhea and other symptoms, not all children are feverish, especially in the early course of the disease, there is no fever and gastrointestinal symptoms, but the typical metastatic have lower abdominal pain, still can suggest appendicitis. 7. Incarcerated hernia: A child with a history of congenital hernia, incarcerated at the external ring or in the scrotum, hard, crying and restless, often with vomiting symptoms. A swollen inguinal scrotal area with a mass, mostly large and hard, can be found. Acute incarcerated hernia requires emergency surgery, while a few children can return the hernia sac to the abdominal cavity on their own after falling asleep.