Male circumcisions do have cosmetic benefits but they also have health benefits too:
1. Some boys will suffer from a condition called Phimosis, in which the foreskin can not be pushed backward far enough to permit urination, proper cleaning of the penis, and can also become a problem called Paraphimosis in which, during sexual intercourse, the tight foreskin makes it back past the head of the penis (glans penis) and gets stuck there, unable to go back forward, thus cutting off circulation to the penis and to the skin itself- a very painful experience that requires immediate circumcision
2. Boys who are not properly educated by their parents as to how to properly clean around the head of the penis, under the foreskin, accumulate a cheesy foul smelling substance called Smegma. This strongly predisposes the man to penile cancer. Also, if they have phimosis, then there is definitely no way that they can clean the smegma even if they wanted to.
3. Sexually transmitted diseases are easier transmitted and carried in an uncircumcised man due to more vascular surface area and more "nooks and crannies" for things to be harbored.
I do not care whether a man in circumcised or uncircumcised, as long as they are not suffering from any issues and have good hygiene.
I personally think that it is my patients' choice as to whether or not they want to circ their sons. I do advise them however of the pros and cons. If there is an adequate opening i.e. enough foreskin, then it is mostly personal preference that governs the decision to remove the foreskin or not. There are cultural, religious and social factors that come into play. If they choose not to, then its fine with me, but I do encourage the parents to teach proper hygiene techniques to their son from a young age, to prevent some of the above mentioned issues.
If there is Phimosis, usually even if the moms decide not to circ their son, sooner rather than later they end up coming back to us because of issues with urinating etc. In that case, it would be much better to have the procedure done as a baby and not as a 5 yr old who would be more cognizant of and traumatized by the experience.
Female Genital Cutting, serves no health benefit. As a matter of fact, it puts the women in a constant uphill battle with their health for the rest of their lives. I do not believe that circumcisions on men and FGC are analogous.