Parasitic infections in children can be diagnosed through questioning, physical examination and auxiliary examination. 1. Consultation: Parasites in children can first be diagnosed through specific clinical manifestations, such as the presence or absence of accompanying symptoms, triggers for the onset of disease, vomiting and other symptomatic manifestations. 2. Auxiliary examination: Auxiliary examination includes routine urine examination and fecal smear examination, which can provide important significance for the treatment by determining the type of infected parasites, and the time of sending the examination should not exceed 24 hours. 3. Physical examination: children’s parasites also need to carry out a detailed physical examination of the whole body to avoid invasion of other parts of the brain, lungs, liver, thyroid, eyes and other parasites. Therefore, when the patient has the phenomenon of children’s parasites, should consult the doctor in time, according to the actual situation for targeted treatment.