I'm asking this question for my sister, I have 4 girls so I really can't answer her question. She has a 4 year old son and was all nervous thinking she has to get him circumcised because his skin is still intact. Her boyfriend told her that his sons are not circumcised but their skin retracts even his 2 year old. So he told her something was wrong. What advice would you give her? I told her perhaps her boyfriends kids' were pulled back by their Pediatrician.. And besides everyone is different. Thanks in advance for your feedback.