Our nephew, who is three months older than our son, was not circumcised, and our son was. He got a few infections when he was in diapers, but also has had some off and on as an older child and adult. One unforeseen complication of keeping his foreskin was that we took the kids to the beach when they were younger, and our nephew happened to get some sand under his foreskin. The poor kid was in alot of pain, and even after a soak in the tub and a couple of good rinses, he had raw patches on his penis that didn't go away for a week or so. My circumcised son had not one problem with the sand.