Is Penis Size Genetic?

Is Penis Size Genetic?

Is the size of your penis really determined by genetics? Science says there is more to it. Learn the relationship between the penis and genetics here.

Quick summary

  • Genetics play a significant role in determining penis size, but it is not fully determined by it alone. Other factors like hormones, nutrition, exposure to toxic substances, and lifestyle also affect penis size.
  • The size of the penis can be increased using a penis extender, a non-invasive device that employs traction technology. The device can help increase penis length and girth, reduce the risk of premature ejaculation, and improve blood flow to the penis.
  • The best penis extenders are medical-grade, use superior materials, offer comfort, and are FDA approved. Products like Phallosan Forte, Quick Extender Pro, and Size Genetics are top-of-the-line recommendations for penis extension.

Undoubtedly yes, your genes do play a major role in determining your penis size; but there are various other factors at play too. Besides genetics, even your lifestyle, habitat, and comorbidities affect your penis size.

There will always be a predetermined penis size for a person that is coded onto their DNA and unraveled when the right time arrives.

But, some of the other factors can influence the working of DNA, thereby preventing it from completely expressing itself, leading to a shorter penis.

So, technically penis size is genetically predisposed but not fully determined by genetics alone since other factors are also involved.

To put it into a better perspective, even if you have superior genetics for a longer and thicker penis, a particular medication you might have used during your developmental phase might affect the size of your penis.

Let us try to grab more insight into this.

What are the genes responsible for influencing penis size?

Genes, particularly the sex chromosomes, that you inherit from your parents determine the size of your penis.

A person’s biological sex & secondary sexual characteristics, such as facial hair and rounder hips, which appear in puberty, are determined by the sex chromosomes.

Men and women have two X-chromosomes but only one Y-chromosome. The SRY gene is found on the Y chromosome, which is attained from the father and the SRY gene is responsible for developing testes and sexual organs in the embryo.

Despite this, penis characteristics, such as width and length, or circumference, are not determined solely by the existence of the Y chromosome.

As the X chromosome only comes from the mother and includes around 900 genes, this may be more dependent on the X chromosome than the Y chromosome, which contains an estimated 90 genes.

A sibling’s penis size may vary based on which X chromosome those did receive from their mother—even if they share the same father.

Penis size can also be influenced by a person’s unique genetic makeup. The penis length, as well as appearance, may be affected by genetic mutations as well.

What are other factors that determine penis size apart from genetics?

Other factors, such as hormones, nutrition, and exposure to toxic substances in the womb, can affect the size of the penis.

The final length of the penis as an adult is influenced by hormones like testosterone, especially during puberty. Lower libido & erectile dysfunction are both associated with low testosterone.

It is possible to increase testosterone levels through a healthy diet and regular physical activity.

Your hormone levels and overall growth can be influenced by your nutrition, especially during pregnancy and the first few years of life. Additionally, malnutrition can lead to smaller penis size.

How to change the size of your penis?

You may want to use a penis extender, a non-invasive, comfortable device that employs traction technology to increase your penis size despite what your genetics had predisposed.

Men’s self-esteem and well-being are the primary goals of this product’s creators.

Men who are happy with the length of their genitalia can still take advantage of the stronger and longer-lasting erections that the best penis extender provides.

How to use a penis extender?

One session per day in the 1st week of use is the best way to see results. You can wear the device until your body gets used to the tension it places on your shaft.

Wearing the penis extender device can be done for no more than 12 hours a day.

After 4 months of use, users will notice an average increase in length of 30%. You can stop using the penis stretcher once you’ve achieved the desired results.

It’s possible that wearing the penis extender for the suggested number of hours each day will help. The benefits are as follows:

  • It helps to build up the height and girth of the penis.
  • It ensures a proper shaft stature.
  • It reduces the risk of premature ejaculation.
  • It boosts penile blood flow with these simple techniques of penis extender.

How is a penis extender different from other products?

There are many penis extenders available on the market, each with its own set of features and advantages. These are the few factors that would convince you to go with an extender if your genetics hasn’t done justice to you.

It is a medical grade product

Doctors might recommend wearing a penis extender if you suffer from penile curvature issues or have poor blood flow towards the penis.

Use superior medical grade materials for construction

Wearing these products on your shaft can cause infection because they serve as breeding grounds for bacteria and germs. Therefore, top-quality penis extenders use medical-grade silicon and aluminum for construction.


For added comfort, penis extenders use padding and foam inserts to host the phallus. This can help you wear this device for longer hours without any problem.

FDA Approved

As a cherry on the top, this category of product is approved and classified to be used for correcting penile curvature and improving blood circulation.


Your parents’ genes aren’t solely responsible for what is inside your jeans, but they play a significant role.

When it comes to it, the size of your penis isn’t all that significant as long as it’s healthy, but with the best assistance of a penis extender, you can increase the girth and length of your penis.

Make sure that you go with top-of-the-line recommendations like Phallosan Forte, Quick Extender Pro, and Size Genetics.

Not always genetics will be your savior; sometimes, a little push from the technology can help you thrive peacefully!

Written by Tom Knight
Fact Checked by Experts
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