As someone who works in the medical feild, I spoke with 3 different Urologists (Doctors who specialize in that area) there is really no type of treatment that enlarges your penis. There are techniques that can add width and there is a surgical procedure where a suspensory ligament is cut to add a SMALL bit of length but the pumps etc. may add a centimeter or two but thats about it. With the present technology, there is no real viable procedure to add any adequate length. If there were, don't you think just about every guy would be in line for it???
