Occasionally a baby will not urinate for several hours following circumcision. Sometimes the cause is an overly tight bandage wrapped around the wound. In other instances the cause is less clear.
It is conceivable that similar urinary retention could result from an overly tight plastic bell ring. There have also been instances of infants failing to void for several hours following circumcision when no bandage or plastic ring was in place. This may be a psychological response on the infant’s part to the trauma of the operation.