In the penis, the frenulum of prepuce of penis anchors the foreskin to the glans. In uncircumcised people, this helps the foreskin to contract over the penis, protecting it. Circumcision may involve removal of the frenulum of the penis as well as the foreskin. The frenulum is considered be one of the most sensitive parts of the penis to touch. Stimulation of the frenulum alone has been found to produce orgasm in some men, and some men retain feeling in their frenulum and surrounding issues even after spinal cord injury. The frenulum of the penis can also cause significant bleeding if injured due to the presence of a small artery in the frenulum. Frenulums which, like those of the penis, contain small blood vessels, can also be found helping to anchor structures near the clitoris and the bottom opening of the vagina.
|