Frenulum breve is the condition in which the frenulum preputii penis, which is an elastic band of tissue under the glans penis that connects to the prepuce (foreskin) and helps contract the prepuce over the glans, is short and restricts the movement of the prepuce. The frenulum should normally be sufficiently long and supple to allow for the full retraction of the prepuce so that it lies smoothly back on the shaft of the erect penis. The frenulum is comparable to the small band between the tongue's lower surface and the lower jaw.
Frenulum breve is often complicated by tearing of the frenulum during sexual activity. The torn frenulum results in healing with scar tissue which is less flexible after the incident causing further difficulties.
The diagnosis of frenulum breve is frequently confounded with that of phimosis (an occurrence as well as phimosis is however possible). The condition is treated either by a reparative plastic surgery operation called a frenuloplasty, or by complete circumcision including removal of the frenulum (frenectomy).