"Counter to anticirc opinions, being circumsized or not has nothing to do with sexual pleasure according to a detailed study of many men, both intact and cut, in the New England Journal of Medicine."
A bris (covenant) for Jewish infants happens on the 8th day, the beginning of a new week, symbolic of the beginning of a new life under God. Circumcision can be practiced later at the beginning of manhood among African tribes and South Korean, Filipino, and Polynesian adolescents. Muslims have their boys circumcised at birth or later. It must be done before marriage. They emphasize hygiene. It is not really a religious event for them.
Adolescent and adult men, who admire the circumcised penis, also have it done, especially if their foreskin is too tight or they have recurrent infections there. It takes about 45 minutes under general anesthesia. Since Jesus was circumcised on the 8th day Roman Catholics celebrate it on that date. (January 1 or 2.. Many Christians honor Jesus by being circumcised both physically and an in the heart or soul.