Down syndrome Down syndrome affects your baby's learning and development, and presents some physical problems. What causes Down syndrome and how can you test for it?
Achondroplasia Achondroplasia is a birth defect that prevents a baby's cartilege from turning into bone as it should. Learn how achondroplasia is treated.
Lead poisoning Lead poisoning occurs from high levels of lead in your water or environment. Learn about the risks of lead poisoning in children.