Infections, tightness, parents having to teach a kid how to clean the inside of their penis, bulling or insecurity because of being different in a culture thats not gonna give it up all at once, women rejecting them because the majority of american women prefer it without, and the worries of anything ever happening where they might have to get it cut in the future cuz they didnt as a baby. Im confused about the breast cancer thing, it sounds like youre saying cutting them off gave the woman cancer so she wished they werent cut off. But my mom and my boyfriends mom had breast cancer and they and lots of other women with it opt to have a full mastectomy very early on so theres no chance of complications and its just a one and done now you can forget about it thing.