To offer the not-so-rare medical condition story, my wife and I were house-parents at a children's home and one of the 10-year old boys was having recurring infections because of poor hygiene habits. After the second time in the hospital to deal with it, the Dr. decided circumcision was the best course forward. The pain and discomfort that poor boy went through as he recovered is something I'd never wish on anyone.
I have 7 kids of my own now, 4 boys. I had them all circumcised when they were babies. The bell devices are clean and simple and even the chance that they'd have to go through that later was worth it to me.