Detachable prepuce postoperative underpants

The detachable prepuce postoperative underpants comprise a front piece, a rear piece, a protective cover and a fixing strip, a bag is arranged on the front piece, a ventilation part is arranged on the periphery of the bag, a plurality of through holes are formed in the ventilation part, a fixing blocking edge is arranged on the periphery of the protective cover, a limiting buckle is arranged on the fixing blocking edge, and the fixing strip is arranged on the rear piece. The fixing strip is provided with a plurality of limiting grooves matched with the limiting buckles, the protective cover is attached to the inner side of the bag, and the limiting buckles penetrate through the through holes and then are buckled with the limiting grooves. The prepuce protective cover has the advantages that the protective cover is arranged in the bag through the fixing strip to protect a prepuce operation incision; the limiting buckles and the limiting grooves are buckled in a snap fastener mode, so that the protective cover