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.
Thalassemia Thalassemia is a hereditary condition where your body produces fewer healthy red blood cells. Learn how thalassemia is diagnosed in your baby.
Marijuana and pregnancy Using marijuana during pregnancy may cause harm to your baby. Learn about the effects of marijuana and how to seek help to quit.