Microtia and anotia Microtia and anotia are birth defects of the ear. Learn about risk factors for microtia.
Newborn screening tests for your baby 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.
Achondroplasia Achondroplasia is a birth defect that prevents a baby's cartilege from turning into bone as it should. Learn how achondroplasia is treated.