The frequency of roundworm injection for children cannot be generalized, and a comprehensive judgment should be made according to the specific situation of the baby. Generally speaking, children over 2 years old can have roundworm shots once a year, not too often, and they should pay attention to dietary hygiene in daily life, and parents are advised to observe closely. If the child has paroxysmal abdominal pain, accompanied by nausea and vomiting, loss of appetite, lethargy and other symptoms, it is recommended that parents promptly take the child to the pediatric gastroenterology department of a regular hospital for a routine stool examination, and if the child is diagnosed with roundworm disease, he or she needs to follow medical advice for deworming treatment. In addition, parents should pay attention to keeping the child’s abdomen warm while taking the medication, and try to eat a light diet and avoid letting the child eat too many sweets.