Penis enlargement (length) surgery
Approximately one-third to one-half of the penis is inside the body, and is internally attached to the undersurface of the pubic bone. Penis lengthening involves the release of the fundiform ligament and the suspensory ligament that attaches the two erectile bodies to the pubic bone (ligamentolysis).
The suspensory ligament makes the penis arch under the pubic bone. Release of this ligament allows the penis to protrude on a straighter path, further outward to give a longer physical appearance.
With the penis on stretch, the ligament is divided close to the pubic bone until all midline attachments have been freed.
Once these ligaments have been cut, part of the penile shaft (usually held within the body) drops forward and extends out, enlarging the penis by 2–3 cm (0.78–1.18 in.).
After surgery, part of the postoperative treatment includes stretching of the penis to prevent the severed suspensory ligament from healing shorter than it was previously.
According to Nim Christopher, a urologist at St. Peter's Andrology Center in London, among men who have had the surgery, "the dissatisfaction rate was in excess of 70 percent".
Real penile lengthening (i.e., lengthening of corporal bodies vs. ligamentolysis) is not a routine or safe procedure because of high risk of losing the ability to have an erection.
It can only safely be done during implantation of penile prostheses in patients with erectile dysfunction or Peyronie's disease. The world's leading urologists specializing in the field of penis enlargement surgery use only ligamentolysis, liposuction of the pubic area, and skin redistribution.
They state clearly that surgeons can only expose the penis more outside the body with especially visible results in obese patients and ones with different deformities of penile skin where the penis is layered.