In the past, there were more roundworms in children’s stomachs, mainly because they often played with mud, because there might be roundworm eggs on the mud, and they didn’t wash their hands after playing with mud and grabbed something to eat when they got home, which caused roundworm eggs to be eaten in their stomachs. Roundworms mainly have the habit of drilling, so when there are more roundworms in the body, they may drill into the bile duct, causing biliary colic, jaundice and other symptoms. At the same time, roundworms in the intestinal tract may form intestinal obstruction. Patients with roundworm infections may experience abdominal pain and teeth grinding, and roundworms can be found in the feces of bowel movements. After the diagnosis is clear, deworming treatment, such as oral albendazole, is needed, while the changes in abdominal pain of the patient are noted during the deworming process.