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.
Preexisting diabetes If you're pregnant and have preexisting diabetes, you and your baby may face some health concerns. Learn how diabetes affects your pregnancy.