Can Ramzi Theory Be Trusted? Your Exclusive Guide

Have you heard of the Ramzi theory for determining the sex of a baby in the first trimester? Gender prediction is on pretty much every expectant mother’s mind from the moment she knows she’s pregnant. 

Will you have a baby boy or girl? It’s understandable that newly pregnant women are anxious to find out the answer to this question. The trouble is that you usually have to wait until the second trimester to get a definitive answer about your baby’s sex.

However, the Ramzi gender theory claims to help you determine the sex of your baby as early as 6 weeks into pregnancy. Many women are just finding out that they’re pregnant around this time! Gender prediction this early in pregnancy sounds almost too good to be true.

In this article, you can learn all about the Ramzi theory, where it came from, how accurate it is and how to use it. Also, we’ll compare it to some of the other options for gender prediction in early pregnancy.

What Is the Ramzi Gender Theory?

The Ramzi gender theory suggests that you can determine your baby’s sex based on which side of your uterus the placenta is developing. Using ultrasound pictures taken as early as six weeks, you can specify where the placenta is.

According to the theory, if the placenta is on the right side of your uterus, you’ll have a boy. However, if the placenta is developing on your left side, you’ll have a girl.

Who Developed Ramzi’s theory?

 The Ramzi theory may seem deceptively scientific because it originated in a study done by Dr. Saad Ramzi Ismail and published on in 2011. However, the study has since been removed from the website. Those who have researched further haven’t found a clear answer about whether the doctor has relevant credentials.

Furthermore, the site where the study was published is not a medical journal. That means studies don’t have to meet any scientific standards or pass a peer review process to be published. To any scientist, this is a red flag indicating the results may not be valid.

Yet, the Ramzi theory is still wildly popular among expectant mothers. It’s easy to get drawn in because it’s relatively easy to use the approach. Learn a little bit more about the method before you rush off to examine your latest ultrasound pictures. 

How to Read the Theory?

Reading Ramzi gender theory is pretty simple as long as you have an ultrasound picture that meets the requirements. You’ll need an ultrasound picture that shows the placement of the placenta, which can be hard to locate precisely in the early stages of pregnancy. If possible, ask your ultrasound tech to tell you which side of your uterus the placenta is forming on. This can help ensure you don’t misinterpret what you’re seeing.

However, if you didn’t ask, you can sometimes locate the placenta. See how to do it below.

Once you know, finding your results is simple. If the placenta is on your right side, you’re more likely to have a boy. But, according to the theory, if the placenta is forming on your left side, you’re more likely to have a girl.

How to Tell Where the Placenta Is On an Ultrasound

In an ultrasound image, the interior of the uterus is filled with amniotic fluid, which appears black on the screen. You can also see the surrounding uterine wall which is gray. The placenta will appear as a smooth gray mass on the image along the uterine wall.

However, the placenta develops during the first trimester and isn’t easily visible until after about 10 weeks of pregnancy. Furthermore, your placenta may form on the top, back or front of your uterus, making it impossible to determine if there’s more of it on the left or right side. If this is the case, you can’t really make use of the Ramzi theory.

How Effective Is the Gender Theory?

According to the original theory, Ramzi Theory is over 95% accurate for predicting both boys and girls. However, the theory has mostly been debunked by a study published in a more reputable journal,  Ultrasound in Obstetrics & Gynecology. This study showed that there’s no relationship between the location of the placenta and the baby’s sex.

So, while there may be examples of mothers who’ve used this method and correctly determined the sex of their babies, they may have just gotten lucky. Even if you guess whether you’re having a boy or girl, you might be right. The Ramzi theory may be about as accurate as that.

With the facts in mind, you can go ahead and use the method, but you should view it as something to do just for fun. The accuracy of the theory is questionable at best. Don’t make any significant purchases based on the results!

Ramzi Theory vs. Nub Theory

Nub theory is another method used for gender prediction in the first trimester. However, this method is ideally used between weeks 11 and 13. How does it work?

The nub method uses an ultrasound to carefully examine the position of the genital tubercle or “nub” which is the beginnings of your baby’s genitals. According to the theory, a boy’s tubercle begins pointing upward. The girl’s tubercle, which will become her clitoris, remains flat or points down.

At this point in development, the size of the genital tubercle is about the same in boys and girls. When using Nub theory at week 12 and onward, the accuracy of the method is up to 98% correct according to one study about gender theory.

The study in Ultrasound in Obstetrics & Gynecology also showed a high rate of accuracy when using the nub theory. This means that if you want to ask your ultrasound tech about one of these theories, you should opt for the nub method. You’re much more likely to get an accurate result.


While it’s fun to engage in gender prediction as soon as you’re expecting, it’s impossible to know for sure until a bit later in pregnancy. Science is continually improving, and methods like the nub theory show promising results. However, other theories like the Ramzi theory, as popular as they may become, are misleading at best.



The Fetal “Gender Nub”: How To Learn Your Baby’s Gender at the First Trimester Screening


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