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.
Medical reasons for a c-section A c-section is when your baby is born via a surgical incision in the uterus. Learn about medical reasons for having a c-section.