At a world level, only 10% of men are circumcised, a proportion that varies a lot from one country to another. In the United States, for example, more than half of the male population is cimcumcised; a bit less than 50% in Australia and Canada, and less than 5% in the United Kingdom and Brazil.
In places like the UK and Brazil, circumcision is usually performed along childhood due to a condition called phimosis in English and fimose in brazilian portuguese.
However, the suspicion of phimosis in boys is more frequent than its real occurrence: its diagnosis is often used for different non-obstructive conditions of the foreskin, which are perfectly normal during childhood.
As a consequence of misdiagnosis and confusion of normal developmental narrowessness and non-retractablity with pathological phimosis, many unnecessary circumcisions are performed. Recent studies show that the number of circumcisions being performed in the United Kingdom is more than 5 times greater than the number actually required.
The problem is that the foreskin (the part of the penis which is amputated during circumcision) is far from just a flap of skin, and its absence can indeed be sorely missed by its owner, even if he fails to realize this himself.
The thick, dry layer of tissue covering the glans of the circumcised penis may necessitate the use of synthetic lubricants to facilitate nontraumatic sexual intercourse. As a matter of fact, most of the times it is wrongly considered that the woman’s lack of lubrication is what makes intercourse painful rather than the lack of natural male lubrication, which is usually the real cause.
Besides, the foreskin’s inner mucosa is home to many nerve bundles and highly erogenous tissue, and is thus highly erogenous. You guessed: its absence may also decrease man’s sexual satisfaction, and maybe even increase the chance of developing some degree of erectile dysfunction at an older age.
Circumcisions should only be performed with extreme discretion, since the foreskin is much more than a flap of skin, and may be sorely missed. That is why the following saying should never be forgotten: “The fortunate foreskin of an infant boy should be left well alone by everyone but its owner”.