It's genital mutilation. There's no medical reason [1]. Yes, having a foreskin means you need to clean it regularly (or your caregiver if you're a baby).
And then there are disgusting things like this [2]:
> In a practice that takes place during a ceremony known as the bris, a circumcision practitioner, or mohel, removes the foreskin from the baby's penis, and with his mouth sucks the blood from the incision to cleanse the wound.
[1] Just like anything, there are exceptions. Some people have their foreskin removed because it has an infection or something similar. That shouldn't be applied to all foreskins, and even so, most of that is preventable with good hygiene.
And then there are disgusting things like this [2]:
> In a practice that takes place during a ceremony known as the bris, a circumcision practitioner, or mohel, removes the foreskin from the baby's penis, and with his mouth sucks the blood from the incision to cleanse the wound.
[1] Just like anything, there are exceptions. Some people have their foreskin removed because it has an infection or something similar. That shouldn't be applied to all foreskins, and even so, most of that is preventable with good hygiene.
[2] http://abcnews.go.com/Health/baby-dies-herpes-virus-ritual-c...