My 4 month old son has a "buried" penis, which looks like his circumcision was only half done. The ridge of the penis is not exposed. The pediatrician told us to pull the skin back on it and then apply an anti-inflammatory ointment every day so that gradually the skin would be worked back down. I have been doing this little by little and 3 days ago, I noticed a little white tendon-looking vessel starting to poke out where the ridgeline of his penis is. I can't tell what it is and I haven't worked the skin down enough to expose all of it. I don't want to pull on it until I know what it is. Do you have any clue what this might be?