Premature Babies
Published May 9, 2026
A premature birth is when a baby is born before 37 completed weeks of pregnancy. Premature babies may have health problems and need special care.
Almost 1 of every 10 infants born in the United States are premature, or preemies. A premature birth is when a baby is born before 37 completed weeks of pregnancy. A full-term pregnancy is 40 weeks.
Important growth and development happen throughout pregnancy - especially in the final months and weeks. Because they are born too early, preemies weigh much less than full-term babies. They may have health problems because their organs did not have enough time to develop. Problems that a baby born too early may have include:
- Breathing problems
- Feeding difficulties
- Cerebral palsy
- Developmental delay
- Vision problems
- Hearing problems
Preemies need special medical care in a neonatal intensive care unit, or NICU. They stay there until their organ systems can work on their own.
Centers for Disease Control and Prevention
Source: NIH MedlinePlus — https://medlineplus.gov/prematurebabies.html
Originally published at https://medlineplus.gov/prematurebabies.html
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