Toddlers often put toys in their mouths and can be exposed to the chemicals in them. Plastic toys may contain chemicals that... moreToddlers often put toys in their mouths and can be exposed to the chemicals in them. Plastic toys may contain chemicals that have been found to be harmful, such as: BPA and PVC. These chemicals can disrupt normal hormonal regulation in growing children. This can lead to health concerns such as precocious puberty,