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Doctor insights on: Boy Ultrasound At 20 Weeks

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At my 18 week ultrasound i did not inquire, but have a rather convincing image of a boy. Not sure how to acurately tell. Pic is looking down on body?

At my 18 week ultrasound i did not inquire, but have a rather convincing image of a boy.  Not sure how to acurately tell. Pic is looking down on body?

You should ask: The "boy" picture is one that many untrained eyes can pick out, for sure. That said, the male/female genitals can have significant overlap in ultrasound appearance, so best to leave it to the experts. One anecdote: i recently had an OB ultrasound guessing game at a baby shower for my friend. Most people's guesses were way off. Best to confirm before you start buying boy stuff. ...Read more

Dr. Michael Gabor
2,155 doctors shared insights

Sonogram (Definition)

The sonogram is a test that looks at body organs with no radiation. It uses sound waves and can give us a 2 dimensional view of organs such as the kidney, liver, heart, and lungs. It can define spaces that are either solid or full of fluid. I can also guide large needles into an organ or near the spine, and can help define the area being cut open. Its a ...Read more


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How accurate is an ultrasound at 18 weeks 5 days in determining gender? We had 2 different techs; one told us girl and the other said it was a boy.

How accurate is an ultrasound at 18 weeks 5 days in determining gender?  We had 2 different techs; one told us girl and the other said it was a boy.

Can be difficult: I would not pick out gender specific clothes or decorations for the nursery. Sometimes it is very easy to see the "important bits", and other times, usually related to the position of the fetus, it can be very hard. ...Read more

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I am having a daughter and now planning for baby boy. My wife has got ultrasound done in 19 weeks. Can that help in determining sex of baby?

I am having a daughter and now planning for baby boy. My wife has got ultrasound done in 19 weeks. Can that help in determining sex of baby?

Can determine: What sex the baby is @20 weeks gestation if they can see the genitalia. No ultrasound can determine the sex of a future pregnancy. ...Read more

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How accurate is ultrasound for gender predication if done at 16 weeks and baby cooperates? Gyn said 95 % boy. Why not 100 % IG penis clear

How accurate is ultrasound for gender predication if done at 16 weeks and baby cooperates? Gyn said 95 % boy. Why not 100 % IG penis clear

Predictions : It is very rare in medicine to make 100% diagnoses or predictions based upon testing, including radiology and ultrasound. It sure sounds like the gyn thinks you are having a boy. But nothing at this stage is 100% accurate 100% of the time. ...Read more

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Our gyn said that our fetus gender is boy 18 weeks after preg. Using his clinic ultrasound. He said 100% as baby cooperated and legs open. Is it 100%?

Our gyn said that our fetus gender is boy 18 weeks after preg. Using his clinic ultrasound. He said 100% as baby cooperated and legs open. Is it 100%?

While nothing: Is 100%, if the u/s saw a penis and scrotum, only a very masculinized vulva could mimic. It sounds like he/she OB is certain that your fetus has male gender. You will know for sure after birth. What is the rush? Curiosity and satisfaction have a price, and this isn't worth it. ...Read more

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Does a baby boy show faster than a girl on a ultrasound ?

Does a baby boy show  faster than a girl on a  ultrasound ?

Confusing question: Faster what ? The heart rate has no predictive value on ultrasound.(faster or slower) Depending on the cooperation of baby,male parts may or may not be detected by the technician. ...Read more

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My wife is 3 month & 2 day preg. Gyn did ultrasound & said probably baby boy but could also be the embirical cord so not sure. Can he mix up ?

It seems : He is unsure because the umbilical cord is near the baby's groin and makes the determination of gender difficult. A followup ultrasound may help. ...Read more