Premature birth - Symptoms and causes - Mayo Clinic
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 …
Preterm birth - Wikipedia
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] Extreme …
Preterm Birth: Premature, Causes, Symptoms & Complications
Feb 23, 2024 · Premature or preterm babies are babies born before 37 weeks of pregnancy. Premature infants are at a greater risk for health problems.
Premature Birth | Fact Sheets | Yale Medicine
Premature birth, also known as preterm birth, is when a baby is born earlier than usual, before 37 weeks of pregnancy. Because premature babies are born early, they have not had as much …
A Week-by-Week Look at the Developmental Stages of Premature ...
Jul 15, 2025 · A preemie born 30 weeks or earlier will need a NICU stay, but babies born later still need extra care. Here's everything to know about premature babies week-by-week.
Prematurity - Stanford Medicine Children's Health
A baby born before 37 weeks of pregnancy is considered premature or born too early. Learn more about prematurity, including causes, risks, symptoms, diagnosis, and treatment.
Preterm Birth | Maternal Infant Health | CDC
Nov 8, 2024 · Preterm birth is when a baby is born too early, before 37 weeks of pregnancy have been completed. In 2022, preterm birth affected about 1 of every 10 infants born in the United …