Early gender guess: Nuchal thickness is the U/S appearance of neck tissue in the first 3 months of a pregnancy. Of 56,000 pts, the neck in females is about 10% thinner. No one knows why. http://s3.amazonaws.com/publicationslist.org/data/kevinspencer1/ref-184/pnd2009_29_578_581.pdf The measurement is used to exclude Down's, not for sexing. Most reliable is to wait until you can see a penis later in the pregnancy.
Answered 2/2/2016
1.7k views
A doctor has provided 1 answer
2 doctors weighed in across 2 answers
A doctor has provided 1 answer
7 doctors weighed in across 2 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question