Genes and chromosomes can sometimes change, causing serious health conditions and birth defects for your baby. Learn about these changes and testing for them.
All babies in the U.S. receive newborn screening tests before leaving the hospital to test for possible health concerns. See which tests your baby may receive.
Cystic fibrosis is a condition that affects breathing and digestion due to a buildup of mucus. Learn how cystic fibrosis in babies is diagnosed and treated.