3 Ways To Use Ultrasonography For Early Gender Determination

Parents that are keen on discerning their baby’s gender can opt for the widely adopted mid-pregnancy ultrasound carried out between 18-20 weeks after conception. It is true that families also have the option of other test procedures that can help determine the gender of the unborn child during early pregnancy. It should be noted that these tests constitute risk and may harm the pregnancy. Such tests are carried out only in circumstances where parents have great concern over genetic problems. Chorionic villus sampling (CVS) test and the amniocentesis (amnio) are very good examples of these tests.

Ultrasonography for gender determinationParents still opt to for early sonograms despite the fact that it doesn’t actually predict a child’s gender accurately mainly because of the exciting feeling attached to the test. The outcome of the test shouldn’t be a yardstick for decorating and purchasing baby cares.

It is claimed by experts that there are functional techniques that can actually tell your baby’s gender through an early sonogram. So if you feel like why not lets’ just give this a try, highlights of the most common techniques are provided below:

Ramzi’s Method

Dr. Saad Ramzi Ismail research work is widely known as the Ramzi’s Method. In a large-scale cohort study for fetal gender detection at 6 weeks gestation, ultrasonography were used in 5376 pregnant women to determine placental location and gender through a ten year period (1997 to 2007) in Canada.

According to his findings

quote-open97.2% of the male fetuses had a chorionic villi/placenta location on the right side of the uterus whereas …. On the other hand 97.5% of female fetuses had a chorionic villi/placenta location to the left of the uterus ….

Obviously, Dr Ramzl’s method was found to be highly reliable. Details can be found at The Relationship Between Placental Location and Fetal Gender (Ramzi’s Method) or pdf version.

Nub Theory

The Nub theory, also known as the “angle of the dangle” proposes that the gender of a child can be known by analyzing the nub angle and shape. During the early stage of pregnancy a major feature in male and female fetuses is a genital tubercle which develops into the male penis and the female clitoris in later stages. This is referred to as the nub.

In order to view the nub in relation to the spine, it must be scanned in profile view. In a situation whereby the nub is located at an angle exceeding 30 degree in relation to the spine, then there is likelihood that we have a male fetus but in a situation whereby the nub is below 30 degrees and pointing straight, then there is a possibility the fetus is a female.

When scans were carried out in a controlled setting, some of the studies predictions reflected 88% accuracy at 12 weeks gestation. Experts on gender determination have carried out findings on three study groups and the level of accuracy of the Nub theory collected ranged between 80-92% for model visibility nub scans.


Boy usually creates an angle exceeding 30 degrees in relation to the spine, while girl produces at the same direction and below 30 degrees in relation to the spine,.

Boy usually creates an angle exceeding 30 degrees in relation to the spine, while girl produces at the same direction and below 30 degrees in relation to the spine.


Skull theory

The shape of the adult skull is distinctly different in both genders and can be a basis for determining the gender of 92% of skulls obtained from the remains of skeletons. Taking into consideration this distinct variation can be a basis for determining the gender of fetuses and with the incorporation of the nub shot a reasonable conclusion can be drawn.

Generally, it is said that when the forehead looks curved/rounded it’s a girl but when it is observed to be straight/sloping we have a boy.

Skull Theory

How about if you don’t have ultrasound scan yet? Don’t worry, you still have at least 101 ways to predict your baby gender, don’t miss it!