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.
Congenital Zika syndrome Congenital Zika syndrome is a group of conditions caused by Zika infection during pregnancy. Learn about the medical care babies with this syndrome may need.
Heroin and pregnancy Heroin is an illegal street drug derived from opioids. See what impact heroin has on your pregnancy and seek help if you're battling addiction.