It will not be necessary in discussing this subject to review the entire anatomy of the muscles and fascia, because the anatomy of this region is well known; but in order to make the point that I desire to make in protecting the perineum, it will be necessary to say a word about the superficial fascia. This consists of two layers, the one continuous with that over the buttocks, thighs and abdomen; the inner layer descends from the abdomen, narrowed to the width of the pelvis, but spreads out so as to envelop the anterior triangle at its base. The abdominal fascia is firmly adherent to Poupart's ligament, and the perineal portion to the outer margin of the ischiopubic rami and the inferior margin of the septum, while the pubic portion is attached along a curved line of the bone, which indicates the origin of the muscles of the anterior