Is it possible that circumcision (removal of the foreskin) could cause a decrease in fertility for a man over a man who has never been circumcised, all other factors being equal? Especially when the sperm comes from the testicles and not the penis. Is there any degree of infertility related to circumcision?

Circumcision research on the quality and quantity of sperm has been the subject of debate for some time. It appears that the medical community that benefits from circumcision feels that it will not affect male fertility. Some members of the medical community, researchers, and ordinary people believe that it does. It seems that the verdict is divided.

However, birth rates are much higher in countries where men are predominantly uncircumcised. How is it possible that circumcision can affect fertility in men?

The testicles hang outside the body because sperm are very sensitive to temperature. They have to be colder than normal body temperature to survive. Men are known to have a higher quantity and quality of sperm in colder months than in warmer months. So men are more powerful in the colder months. It is believed that in the hottest months, the sperm are damaged due to the high temperatures that build up in a man’s underwear and basically from cooking some of the sperm. This is why boxers are preferred over conventional underwear for sperm health. With tight underwear, the testicles are closer to the body. This damages the sperm from the elevated temperature of being against the body.

So we understand that sperm are very sensitive to temperature.

Now this is where it gets interesting:

Circumcised men have significantly higher resting temperature of their penises than men who are not circumcised. Uncircumcised men have colder penises than circumcised men. When either group becomes aroused, the temperature of his penis rises to the same temperature.

There is no doubt that an uncircumcised man has a colder penis than a circumcised man in a flaccid state. For whatever reason, the removal of the foreskin is the reason for this. There seems to be some kind of temperature sensor in the foreskin that can monitor the temperature of the penis. Removing the foreskin removes this sensor.

It only takes a few degrees of temperature difference to damage sperm. Since the penis is very close to the testicles, a cooler penis will most likely help keep the testicles cooler (remember that men are more powerful in the colder months of the year). Under these conditions, if the testicles get too cold, they can always retract closer to the body.

But if the circumcised man has such a (relative) hot penis, what happens when this hot penis huddles in his underwear against his testicles? That’s right … It will make the testicles get hotter. So when the cremasteric muscles relax to allow the testicles to drop as low as possible to get away from this heat … what happens? It doesn’t matter, as they are resting next to this “hot” penis.

Remember, it only takes a few degrees of temperature change to damage sperm.

The foreskin has many functions and this is one of them. Mother Nature gave man a foreskin for numerous reasons. One of those reasons keeps the penis cooler, there is no denying it. Could foreskin removal affect a man’s fertility? True seems feasible.

Now consider this: circumcised and uncircumcised men have the same penis temperature when fully erect, as we discussed earlier in this article. So clearly, there is a specific reason why an uncircumcised natural penis remains at a cooler temperature during the flaccid state. When the penis is erect It is no longer very close to the testicles, so the temperature of the penis should not affect the testicular temperature at this stage (whether the penis is circumcised or uncircumcised).

After orgasm, the penis tends to retract further into the pelvis (at least in my experience). Due to the friction and increased blood flow that occurred during intercourse, it makes sense for the penis to have a temperature rise in a flaccid post-sex state than in a flaccid pre-intercourse state. Could this retraction be another mechanism for the “heated” penis to stay away from the testicles?

Perhaps one day we will have the knowledge to know how the foreskin is related to the temperature of the penis.