Myth: Uncircumcised Men Enjoy Sex More
By June Machover Reinisch, Ph.D.
Scientific Study of Sexual and Psychosexual Development
HSAB Affiliation: Executive Director.
"Does circumcision affect sexual pleasure, and does it have any benefits that might make the quite low level of surgical risk, like bleeding and infection, or possible discomfort even with anesthetic, worthwhile? And, if you are already one of the majority of men in the United States who are circumcised without being asked, are you missing out on anything of consequence? That’s our question. What I want to focus on here today is the widespread belief of some people that men with a foreskin get more pleasure from sex than men who have been circumcised. Now the basis for this belief has not in the past been scientific, just like the basis for circumcision has not been scientific in the past. And that’s because data have been really hard to obtain, since most men have not been in the position to experience participating in sexual behavior with and without their foreskin. Obviously – since it’s done early in life. There was a kind of logic, I think, to the position that it might be better to have a foreskin, because the foreskin covers the most sensitive part of the penis, that is, the head or the glans of the penis. And it seems logical to believe that this covering would protect that sensitive part of the penis from irritation and perhaps keep it more responsive for the times that it’s uncovered during sexual activity. I mean that seems to make sense. And also, being that the penis is one of the most – well, perhaps the most highly valued part of many men’s bodies, or every man’s body, it was not surprising that the thought of losing even a very small part of it would be considered negative. And finally, the fact that many men have a major concern about the size of the penis, the loss of even a millimeter of it would certainly not be construed as moving in the right direction. So we can understand that there would be a concern about removing any part of it, and removing this part that covers the most sensitive part.
So, we have three very recent studies that have addressed this question, about the possible changes in sexual satisfaction after circumcision in adult men with sexual experience. And these are quite new studies. The first was conducted in 2002 in the United States, and it questioned 15 adult men about the details of their sexual lives prior to undergoing circumcision. They were assessed on their sex drive, their erections, their ejaculations, their sexual problems, and their overall sexual satisfaction. The average age of these subjects was almost 37 years old, and they were asked again about these same aspects of their sexuality a minimum of three months after the circumcision took place. The researchers found that there were no differences before and after the circumcision in the men’s reports on their sex drives, their ejaculations, their erections, their sexual problems, or their overall satisfaction. So the researchers concluded that there appeared to be no adverse clinically important effects of circumcision on male sexual function in sexually active adults. So that’s our first piece of evidence – good news!
The second study was conducted in Turkey in 2004 with 42 adult men. Now, 39 of these men had their circumcisions for religious reasons, and 3 for cosmetic reasons. The men ranged in age from 19 to 28 and the average age was about 22 years and 4 months. These men were also questioned about their sexual functioning before the surgery in the same way as the men in that first study I told you about. They were also evaluated for the time that it took them to ejaculate. This time that it takes you before you ejaculate, from the beginning when you start stimulation until after you ejaculate, or until the time you ejaculate, is called ejaculatory latency time. And then, three months after their circumcision, the 42 men were evaluated in exactly the same way again. No differences were found between the men’s reports of their sex drives, their erections, their ejaculations, their sexual problems, and their overall sexual satisfaction before and after the circumcision. But there was a change in their ejaculatory latency time. The average time it took them to ejaculate was a bit longer than prior to the surgery. The researchers concluded that adult circumcision does not affect sexual functioning and, based on their sample, the increase in ejaculatory latency time, they felt, could be considered an advantage.
The last study was conducted in the United States in 2005. The research was designed specifically to evaluate differences in sensation between two groups of men – one group was circumcised at birth, and the second group was uncircumcised. There were 125 men in the circumcised group, and 62 men in the uncircumcised group. This was a very, very interesting study because they used what’s called quantitative somatosensory testing. And this involves different kinds of touch on the head, or the glans, of the penis. Now these evaluations tested sensitivity to five kinds of sensations – vibration, pressure, spatial perception – that is, it’s the kind of thing where you have two places being touched and they see if you can tell whether it’s one or two places that are being touched, it’s that kind of spatial perception – and when one can feel the first feeling of warmth or the first feeling of cold – so it starts at room temperature or body temperature and then it gets a little bit warmer or a little bit colder, and you tell exactly when (you have your eyes closed of course) you can first feel the warmth or the cold. So it tells you how sensitive you are to temperature. So those are the kinds of tests that they gave – it’s very precise sensory testing. When age, hypertension, diabetes, and any erectile problems were accounted for, there were no differences in the sensitivity to all these different kinds of touch between the circumcised and the uncircumcised men. That’s a very precise kind of measurement of sensitivity. This is, I think, probably the best study done so far, and the results were quite clear. They also agree with the other studies of men who were circumcised in adulthood. So, based on these studies, I feel quite confident in saying to you at this point that there are no identifiable differences in sexual pleasure between circumcised and uncircumcised men. And so I think we can lay that aside, and say that there probably aren’t any differences."