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.
Rh disease RH factor is a protein on some people's red blood cells. Learn how RH disease affects your baby and how to prevent it.
Sickle cell disease and your baby March of Dimes leads the fight for the health of all moms and babies. We use research, advocacy, and education to give every baby the best possible start.