Ascariasis is a parasitic disease caused by earthworm nematodes in the human small intestine or other organs. The high prevalence of this disease is school-age and preschool children. If the larvae migrate in the human body, it can cause visceral larval migratory disease, so timely deworming treatment is needed. Once a child is found to have symptoms such as pain around the umbilicus, abnormal diet, easy to wake up at night, teeth grinding and drooling, or general symptoms such as diarrhea, fever, irritability, as well as larval migration symptoms such as cough, chest pain, asthma, difficulty in breathing and itchy skin, it suggests that the child needs deworming. If roundworm eggs are found in fecal examination, roundworm shadows are found in barium gastrointestinal meal fluoroscopy or there is a history of fecal discharge or vomiting of roundworms, roundworm disease can be clarified. In addition, for patients suspected of pulmonary roundworm disease or allergic pneumonia caused by roundworm larvae, roundworm larvae in sputum can be examined to confirm the diagnosis of the disease. Second, how to treat ascariasis Once ascariasis is diagnosed, it should be actively treated to avoid serious complications, and its treatment measures are as follows: 1, deworming treatment: commonly used deworming drugs include prothiimidazole, mebendazole, levamisole and piperazine citrate, etc., which have better deworming effect and less side effects; 2, complication treatment: such as biliary tract ascariasis, combined Chinese and Western medicine treatment can be used to antispasmodic, analgesic and Deworming or fiber endoscopic worm extraction is the main treatment. Roundworm intestinal obstruction is treated according to the general intestinal obstruction treatment principles, including fasting, gastrointestinal decompression, antispasmodic and pain relief, intravenous rehydration, correction of dehydration and metabolic acidosis. If it is complicated with ascariasis appendicitis, intestinal perforation, acute purulent cholangitis, solitary liver abscess, hemorrhagic necrotizing pancreatitis, it should be treated by surgery as soon as possible. Third, how to prevent roundworm disease roundworm disease on the human body is seriously harmful, daily life should do a good job of preventive measures to prevent the emergence of roundworm disease. Specific preventive measures are as follows: 1, wash hands in time before meals and after stools; 2, do not eat raw unwashed vegetables and fruits, and do not drink raw water; 3, eliminate flies and cockroaches to avoid transmission; 4, dry bedding and ventilate the room diligently; 5, strengthen hygiene education.