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.
Isotretinoin and other retinoids during pregnancy If you're pregnant, oral retinoids may increase your baby's risk for birth defects. Learn how to protect your baby from the effects of isotretinoin.
Sex during pregnancy Having sex during pregnancy is generally safe for most women. Learn how pregnancy affects your sex life, and when to talk to your health care provider.