Marfan syndrome Marfan syndrome is a birth defect that affects the body's connective tissue. Learn the signs and symptoms of Marfan syndrome and how it's treated.
PKU (Phenylketonuria) in your baby Phenylketonuria (PKU) is a condition where your body can't break down an amino acid called phenylalanine. Learn to recognize PKU symptoms and treatments.
Smoking during pregnancy Smoking during pregnancy can cause problems like premature birth and birth defects. If you need help to quit smoking, tell your health care provider.