Over-the-counter medicine, supplements and herbal products during pregnancy If you're pregnant, talk to your provider before taking any medicine, supplement or herbal product. Some of them aren't safe during pregnancy.
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.