Are Babies Fully Developed At 36 Weeks?

Are Babies Fully Developed At 36 WeeksSource:

As a soon-to-be mom, you might be wondering whether your baby is fully developed at 36 weeks, which is considered full-term. The answer, however, is not as straightforward as a simple yes or no.

What Happens at 36 Weeks of Pregnancy?

At 36 weeks, your baby is about the size of a head of romaine lettuce, weighing around 6 pounds and measuring around 18.5 inches long. By now, most of your baby’s organs are fully developed, and they’re just getting ready to make their grand entrance into the world.

At this stage of pregnancy, your baby’s lungs are almost fully matured, and they’re able to breathe on their own if they were to be born prematurely. However, doctors still prefer to wait until the 39th week of pregnancy to deliver, unless there’s a medical emergency, as the brain and nervous system continue to develop until then.

What Happens After 36 Weeks?

After 36 weeks, your baby’s growth may slow down, but they’ll still be gaining weight and becoming more active. They’ll also continue to develop their five senses and cognitive abilities, such as memory and learning.

During the last few weeks of pregnancy, you’ll likely be feeling more tired and uncomfortable, and experiencing more frequent Braxton Hicks contractions. Your healthcare provider will monitor your baby’s movements, heart rate, and position to make sure everything is progressing as it should be.

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Factors That Affect Fetal Development

While most babies are fully developed at 36 weeks, there are some factors that can affect fetal development and cause complications. These include:

  • Maternal health issues like gestational diabetes and high blood pressure
  • Infections like Zika virus and cytomegalovirus
  • Placental problems, such as placenta previa and placenta accreta
  • Smoking, alcohol, and drug use during pregnancy

If you have any concerns about your baby’s development, be sure to discuss them with your healthcare provider. They can perform ultrasounds and other tests to check your baby’s growth and well-being.


In conclusion, most babies are fully developed at 36 weeks, but their brain and nervous system continue to develop until the 39th week of pregnancy. While there are some factors that can affect fetal development, most pregnancies progress smoothly without any complications. If you have any concerns, don’t hesitate to reach out to your healthcare provider for guidance and support.

Frequently ask and question:

  1. What are the signs of preterm labor?
  2. What can I do to prevent preterm labor?
  3. What are the risks of delivering a baby before 37 weeks?
  4. Can a baby be too big or too small at 36 weeks?
  5. What should I expect during my 36-week prenatal visit?

Remember, every pregnancy is unique, and your healthcare provider is your best source of information and support. Stay healthy, stay positive, and enjoy this exciting time in your life!

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By administrator

I am a child development specialist with a strong passion for helping parents navigate the exciting and sometimes challenging journey of raising a child. Through my website, I aim to provide parents with practical advice and reliable information on topics such as infant sleep, feeding, cognitive and physical development, and much more. As a mother of two young children myself, I understand the joys and struggles of parenting and am committed to supporting other parents on their journey.

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