Lead Poisoning Lead poisoning is a rare but severe incidence. Lead poisoning occurs by ingesting a strong dose of lead or breathing in lead dust. Lead dust is invisible therefore, preventing breathing is not under control. In most of the cases, minute quantity of lead settles in body of a worker who works at a lead-exposed occupational setting. Single exposure or ingesting small quantity of lead does not produce poisoning. The symptoms of poisoning appear gradually. The symptoms are critical when large dose is ingested. They include headache, abdominal pain, loss of appetite, irritability, fatigue high blood pressure, anemia, kidney dysfunction, vomiting, seizures, stumbling gait, and coma. Children are prone to develop developmental dysfunctional and abnormalities as toys usually contain lead.