Zika virus and pregnancy Zika infection during pregnancy can cause a birth defect called microcephaly and other brain problems. Learn how to protect yourself from Zika.
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.