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.
What is full-term? A full-term pregnancy lasts between 39 weeks and 40 weeks, 6 days. Babies born full term have the best chance of being healthy.
Preterm labor and premature birth: Are you at risk? March of Dimes leads the fight for the health of all moms and babies. We use research, advocacy, and education to give every baby the best possible start.