Can Ramzi's theory predict the baby’s sex?

Finding out the baby’s sex is a curiosity trigger for expecting parents; the curiosity is doubled if this is the first baby. One of the famous theories that claims to predict the sex of the fetus is Ramzi's theory, which we will discuss in detail in this article.

Published on:May 2nd 2024
نظرية رامزي

What is Ramzi's theory?

It is a theory developed by ultrasound specialist Dr. Saad Ramzi Ismail, who is not a medical doctor but holds a PhD in public health. He has nearly forty years of experience examining pregnant women using ultrasound. Based on a study he conducted on more than five thousand pregnant women, Ramzi concluded that there is a correlation between the position of the placenta at the beginning of pregnancy and the sex of the fetus.

However, he stated in his paper that it was not peer-reviewed and was not published in a scientific journal, but rather on a public website on the Internet, that if the position of the placenta at the beginning of pregnancy is on the right of the uterus, then the fetus is a male, or if the placenta is on the left of the uterus, then the mother is carrying a girl.

Is Ramsey's theory accurate?

Doctors confirm that no scientific evidence supports this theory's validity. Most doctors do not consider it a scientific theory because it is based on an individual observation not supported by scientific evidence and proof, and experts have not reviewed these observations.

According to this theory, the position of the placenta when performing an ultrasound examination in the sixth week of pregnancy determines the sex of the baby. At the same time, the fetus’s reproductive organs do not form until the eighth or ninth week of pregnancy.

In addition, several placenta positions have not been considered. The placenta can be posterior, anterior, or previa.

Although the medical and scientific community has disavowed this unproven theory, pregnant mothers' forums around the world are filled with pictures of the first ultrasound examinations of mothers who believed Ramzi's theory of predicting the sex of the fetus based on the location of the placenta on the right or left side of the uterus. But all this is just a coincidence. Ultimately, the probability that the fetus will be male or female is 50%, regardless of the location of the placenta in the uterus.

Accurate Ways to Determine Baby’s Sex

Aside from Ramzi's non-medical and non-scientific theory, there are many proven and scientifically proven methods to detect the sex of the fetus during pregnancy, the most notable of which are as follows:

1| Pre-implantation genetic screening (PGT-A).

It is a genetic test performed on in vitro fertilized (IVF) embryos to screen for chromosomal abnormalities. It examines some cells from fertilized embryos before they are implanted in the uterus, before pregnancy, in search of extra or missing chromosomes. Through this test, the sex of the fetus can be determined, and it is 99% accurate.

2| Non-invasive prenatal testing (NIPT).

A blood test is performed between weeks 10 and 12 of pregnancy. Doctors usually use it to detect chromosomal abnormalities, and it is very accurate (about 99 percent) in determining the child's sex.

3| Ultrasound

It is a comprehensive examination that is performed after the twentieth week of pregnancy when the main fetal organs have formed, and it is possible to easily detect the sex of the fetus at this stage of pregnancy.

4| Chorionic villus sampling

 It is a genetic test that takes a small sample of cells from the placenta. According to experts, it detects various diseases and is one of the most accurate ways to determine a baby's sex.

5| Amniocentesis

Testing the amniotic fluid, where the doctor inserts a needle to take a small amount of amniotic fluid from the uterus to detect certain conditions. It is also a very accurate way to determine whether the mother is pregnant with a boy or a girl.


Using unconventional methods such as Ramzi's theory can be fun to pass the time during pregnancy. Fortunately, modern medicine and its advanced methods exist to detect the sex of the fetus.

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Omooma is the first Online platform offering classes in Arabic dedicated to mothers and mothers-to-be. In addition to content covering many relevant topics, women’s health, pregnancy, fertility, child’s health, and parenting. Omooma’s articles are written by medical writers, based on extensive research, and reviewed by a panel of experts who are part of the largest team of experts available in the region in all fields related to the journey of motherhood.

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