If it's cracked and can't be fixed with this method than in some cases a urologist (which he needs to see in both cases) may have no choice but a circumcision.
If the skin isn't ever retracted fully to clean the glans and under there will be a crusty yellow build-up called smegma to deal with.
Often when guys who aren't circumcised have an erection, their foreskin just slides back a little bit, not all the way past the head unless it's put there. If it causes pain for him to have it move back to just behind the head, he may have a condition which can be surgically fixed (important, because if he can't move the skin, he can't clean underneath!) [ NinjaNeer's advice column | Ask NinjaNeer A Question ]
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