Cutting the suspensory ligament can cause an erect penis to be unstable. Severing the suspensory ligament is sometimes combined with other procedures, such as removing excess fat over the pubic bone. A procedure to make the penis thicker involves taking fat from a fleshy part of the body and injecting it into the penis shaft. Results may be disappointing, however, because some of the injected fat may be reabsorbed by the body. This can lead to penile curvature or asymmetry and an irregular looking penis. Another technique for increasing width is grafting tissue onto the shaft of the penis. None of these procedures has been proved safe or effective and can even affect potency and your ability to obtain an erection.