The subcutaneous tissue of perineum (or superficial perineal fascia) is a layer of
subcutaneous tissue surrounding the region of the
perineal body.
The superficial fascia of this region consists of two layers, superficial and deep.
The superficial layer is thick, loose,
areolar in texture, and contains in its meshes much
adipose tissue, the amount of which varies in different subjects. In front, it is continuous with the
dartos tunic of the
scrotum; behind, with the
subcutaneous areolar tissue surrounding the
anus; and, on either side, with the same fascia on the inner sides of the
thighs. In the middle line, it is adherent to the skin on the
raphe and to the deep layer of the superficial fascia.
The deep layer of superficial fascia (
fascia of Colles) is thin, aponeurotic in structure, and of considerable strength, serving to bind down the muscles of the root of the penis.