Circumcision and the Penile Frenulum
Many men, when they start restoring their foreskin, have questions about the frenulum. To answer questions about the frenulum, we must first consider what the frenulum does and how it works.
(click the pics to embiggen - NSFW)
The frenulum is a body part that connects the glans penis to the ridged band of the foreskin. The frenulum functions as a tether. It is a relatively inelastic section of tissue extending from the meatus to the ridged band on an intact man. The frenulum is connected to the inner foreskin by a web. The frenulum prevents the intact foreskin from retracting and fully exposing the inner foreskin, like it is on a circumcised man.
To understand how the frenulum works, consider your tongue. The lower portion of your tongue is connected to the floor of your mouth with a frenulum. The bottom medial portion of the tongue is tethered to the floor of the mouth. Without that frenulum, the tongue would be able to move fully back into the throat. With the frenulum tethering the tongue, you cannot swallow your tongue. Read more . . .