Nowadays, children do not need routine deworming treatment, but if they are infected with roundworms, they need active deworming treatment. Nowadays, hygienic conditions have improved a lot compared with the past, and the measures for preventing parasitic infections are also much better. The infection rate of roundworms has been reduced substantially, and children do not need to undergo routine deworming treatment every year, and deworming treatment is usually used only when the children are clearly infected with ascaris lumbricoides. If the roundworm infection is mild, it may be recognized only by paroxysmal abdominal pain or when the worms are expelled from the body. In more severe cases, children may present with severe abdominal pain, lethargy, xenophagia, etc. If the roundworms enter the bile ducts, they may cause cholecystitis. It is recommended that children with symptoms of roundworm infection, or who have detected worms or eggs in their stools, should consult a doctor and follow the doctor’s instructions for treatment.