1. Health
You can opt-out at any time. Please refer to our privacy policy for contact information.

Premature Babies Week by Week


Updated May 29, 2014

Written or reviewed by a board-certified physician. See About.com's Medical Review Board.

5 of 8

Premature Babies Born at 29-30 Weeks
A 29 week preemie, just moments after birth.

A 29 week preemie, just moments after birth.

Image courtesy of Corinne Kompelien

By 29 to 30 weeks, a growing baby has matured a lot. Premature babies born between 29 and 30 weeks will still require long NICU stays, but their vital organs are much more developed than those of babies born earlier.

By 29 to 30 weeks, premature babies weigh about 3 pounds and are about 17 inches long. Although they're still very small, 29 weekers and 30 weekers have more fat stored under their skin, so they look more like "real" babies. They are starting to shed their lanugo, the fine hair that covers a preemie's body.

In addition to all of this outside maturity, the brain goes through a period of rapid growth as well. The brains of 29- and 30-week premature babies are starting to look grooved and wrinkled, and are mature enough to begin controlling body temperature.

Read More:

Related Video
When to Be Concerned About Newborn Sleep
Understanding Infant Vision
  1. About.com
  2. Health
  3. Preemies
  4. Preemie Milestones
  5. Premature Babies Born at 29-30 Weeks

©2014 About.com. All rights reserved.

We comply with the HONcode standard
for trustworthy health
information: verify here.