The Unsolved Mystery of the Foreskin and Penis Temperature

A Heat Sink (or heatsink) is a device used to absorb and dissipate heat from whatever it is attached to. They are common on computer circuitry boards to help keep the board and chips cooler. What does this have to do with the foreskin?

A scientific study at McGill University was carried out on penis sensations and ability in circumcised and uncircumcised men. The results were later published in the Journal of Sexual Medicine.

The findings show that in a flaccid and pre-arousal state, that the temperature of an uncircumcised penis was lower than that of men who had been circumcised. So, basically, the resting temperature for an uncircumcised penis is lower than that of the circumcised penis. A significant difference, too.

However, upon becoming erect through arousal, both the circumcised and uncircumcised penis rose to the same temperature levels.

What this means is that uncircumcised men have a greater increase in penile temperature compared to the circumcised man upon arousal.

No one is really sure why this is so. It could be that the foreskin is some form of temperature sensor that helps regulate penis temperature. By removing the foreskin, the penis may lose this sensor and temperature regulator, so that penis temperature is more based on regular circulation. Having no feedback from the foreskin (think of it like a thermostat that controls penis temperature {blood flow}) perhaps it isn’t able to regulate temperature correctly?

It also may mean that a foreskin acts as a sort of heat sink to dissipate from the penis to keep it at a cooler temperature. It is certainly a mystery. Though it is apparent that the foreskin is somehow related to penile temperatures.

It would seem that since the uncircumcised penis had a lower resting state of temperature, that because there is a greater increase in heat with arousal, that this may be more pleasurable for men who are circumcised. It seems logical, as the uncircumcised penis would go through a greater change that is directly associated to pleasure.

We know that the foreskin has the richest nerve endings in the penis. Especially light tactile sensation. So if the foreskin is so nerve rich and definitely has something with modulating penis temperature, what does this say about when vaginal entry is performed? The first thing a man notices upon entering the vagina is the intense feeling of heat. Does the foreskin somehow act as a thermometer during the sexual act? If its presence means a man has a colder penis during flaccidity, then perhaps it reverses its role when inside the vagina, and acts as a heat conductor to the penis during sex? This would, perhaps, aid in a man’s perception of heat and/or pleasure during intercourse.

Whatever the reason is, it’s clear that the male foreskin has roles greater than just tactile/pressure/pleasure sensations, lubricating the head of the penis, and helping stimulate the penis during intercourse.

Then we have to question, how a resting temperature that is lower during non-arousal might affect men. I can see where a colder and flaccid penis would respond more to oral sex. That is if the penis was introduced into the mouth while it was still flaccid. Clearly the uncircumcised man will feel the affects of the heat of the mouth more than a circumcised man upon flaccid entry into the mouth. This, I assume, would be more pleasurable for the uncircumcised man.

As penis temperature rises upon erection, then there is also a connection between arousal states and penis temperature. We understand that the penis creates an erection through an increase in blood flow which will increase the penile temperature. So if the uncircumcised penis is hotter than a circumcised penis in the resting state, does this mean that circumcised men may have more sexual thoughts and urges than the uncircumcised man? It’s possible, as his penis is hotter (more often) than the uncircumcised man. And penile heat is related to arousal.

Clearly it seems a shame to remove the foreskin from the penis. But what else is new? Not too long ago tonsils were being removed, left and right, by physicians, as they felt they were some useless vestigial organ. So to stop kids from getting tonsillitis, they’d cut them out. Then they discovered that tonsils are the most important first stop of the immune system for throat and lung infections. They are basically lymphatic tissue and are very important for immunity from disease.

Perhaps one day we will discover why the foreskin seems to be related to penis heat.

Understanding your sexual system is the first step upon improving upon it. That’s what this article is designed to do. It is designed to share information about a man’s sexual function. For men interested in creating an Iron Man Penis, read the book of the same title.

Sincerely, Georg von Neumann