Preterm birth, also known as premature birth, is the birth of a baby at fewer than 37 weeks gestational age, as opposed to full-term delivery at approximately 40 weeks. [1] .

Premature birth occurs in about 11 to 13 percent of pregnancies in the US. Almost 60 percent of twins, triplets, and other multiple deliveries result in preterm births. A birth is considered "preterm" when a …

Feb 23, 2024 · A preterm, premature or “preemie” baby is a baby born too early, or about three weeks before their due date. A full-term pregnancy (fetal development) lasts about 40 weeks.

May 17, 2024 · When babies are born too soon (premature), parents may worry about how their infant will grow and develop. Premature (“preemie”) babies may differ in their growth and development …

How doctors characterize a preemie depends on the week your baby was born and his weight. Learn about the different types of premature babies and survival rates.

Dec 23, 2025 · A premature birth means a baby is born too early. The birth takes place before the 37th week of pregnancy. A typical pregnancy lasts about 40 weeks. Premature babies often have serious …

When your baby arrives sooner than planned, it's considered a premature birth. You no doubt have lots of questions. You may be asking what is prematurity? Will my baby have to stay in the hospital and …