circumcision
Removeal of the Forskin of the penis

Reasons for:

reduction of infections, to male and female, easier to take care of, the Smegma thing.

Reasons against:

reduciton of pleasure, unnecessary surgery, reduces immunity

Female circumcision (female genetial mutilation) paper
removal of the clitoris or the hood that surrounds it.
animaiton of uncircumcised
Further discussion of the differences

maps

male, female

refernce
infant circumcison