Some parents worry about the risk of penile cancer may be higher in uncircumcised men. Also, the association being between not being circumcised and penile cancer may not be as clear as those in the Unite States assume. A circumcision can be botched up. Sometimes the doctor cuts too much off. Sometimes a child ends up needing to have another surgery to correct their doctor's mistakes at a later date, and, of course, sometimes the mistakes can't be fixed.
Some babies do die as a result of complications resulting from their circumcision.
Whether botched up or not, circumcisions are incredibly painful. Thankfully, pain killer is now recommended by the AAP, though surprisingly they didn't come out with their recommendation until March 1999. There are, however, some concerns involved with using it. Plus, it is not always effective. Being stuck with a needle in the penis is itself painful for a baby, just as it would be for anyone else.