Excessive lead in babies may be caused by dietary factors, environmental factors and the use of lead-containing appliances. 1. Dietary factors: As babies often consume foods containing high levels of lead, such as french fries, potato chips, popcorn, canned foods, etc., all of which may lead to excessive lead levels in babies. 2. Environmental factors: As the lead content in the surrounding environment exceeds the standard, for example, near gas stations, printing factories or babies often play on the roadside with high traffic flow, it may lead to lead entering the body through the respiratory tract, which may result in babies with excessive lead. 3. Use of lead-containing appliances: As babies use toys, tableware or learning appliances containing more lead for a long period of time, it may lead to the entry of lead into the body, resulting in the emergence of excessive lead levels. If your baby has excessive lead, parents are advised to bring your baby to the hospital in time for treatment under the guidance of the doctor, so as not to aggravate the condition and develop the symptoms of lead poisoning.