Children with lead poisoning may have digestive symptoms such as nausea and vomiting; as well as neuropsychiatric symptoms such as insomnia and excessive dreaming. 1. Digestive tract symptoms: When lead poisoning occurs in human body, nausea, vomiting, intestinal colic, abdominal distension, constipation or diarrhea may occur, which may lead to gastrointestinal hemorrhage in severe cases. If lead poisoning is caused by gastrointestinal tract intake, there may be a metallic taste in the mouth. 2. Neuropsychiatric symptoms: when lead poisoning, it may cause headache, insomnia, dreamy and other symptoms, serious anxiety, irritability, hallucinations and other symptoms. When your child develops symptoms of suspected lead poisoning, you need to consult a doctor in time and take active treatment under the doctor’s guidance.