If it's a male and the testicles haven't descended, it can look like a female. It's not 100%." Making the wrong call happens more frequently than we realize, perhaps as high as one out of ten times. "It's not that uncommon to have gender wrong," said Dr.Mar 27, 2015
How often is gender wrong on ultrasound?
The results of this study indicate ultrasound gender predictions by sonographers are 100% sensitive for accurately predicting the gender in the second and third trimesters. The overall success rate of correctly identifying fetal gender in the first trimester was much lower (75%).Dec 31, 2015
Can ultrasound be wrong about gender at 20 weeks?
While gender prediction is much more accurate during the 20-week ultrasound, there's still a chance it can be wrong.Dec 20, 2016
How accurate is the 20 week gender scan?
Accuracy. With that being said, over 99% of ultrasounds performed between weeks 18 and 20 will make the correct determination. 4 It is only when it is performed before week 14 that the rate of accuracy can drop significantly.Oct 22, 2021