Retracting the foreskin reveals the glans and makes the skin on the shaft somewhat loose. The foreskin covers this lengthened shaft. It is designed to accommodate an organ that is capable of a marked increase in diameter, as well as length. In addition, the foreskin is the most sensitive part of the penis and can enhance the quality of sexual intercourse. Anatomical studies demonstrate that the foreskin has a greater concentration of complex nerve endings than the glans.
History shows that the arguments in favor of circumcison are questionable.
We now know that circumcision does not prevent masturbation, nor does masturbation lead to insanity. The current excuses are that failure to remove the foreskin may contribute to urinary tract infections and penile cancer, but neither of these contentions has been proved. Even if either were correct, the risk of urinary tract infection in an uncircumcised infant is only one in one hundred. Performing 100 mutilative surgeries to possibly prevent one treatable urinary tract infection is not valid preventive medicine - it is just another excuse. Penile cancer occurs in older men at the rate of approximately 1 in 100,000.