Nuchal Translucency is the fluid in the area behind the neck of all babies when they are in the womb. This size of this fluid is called nuchal translucency (NT). The reason why some babies have more fluid behind their neck than others is not known. What we do know is:

  • A baby in the mother’s womb that has normal chromosomes, but more fluid behind the neck, has a higher chance for congenital heart disease.
  • The more abnormal the NT measurement is, the higher the risk for a major congenital heart defect.
      

Nuchal Translucency Image