A male diaper permits a user to urinate without removing the diaper from a lower body region of the user and includes a main body member disposed around the lower body region of the user and having a front portion with a crotch region having a front flap and a rear flap separated to create an opening to permit the user's reproductive organ to pass therethrough, and an exterior flap detachably coupled to the front portion of the main body member by a fastener. The exterior flap is designed to attach to the main body member to a closed position to seal the opening. The exterior flap is designed to detach from the main body member to an open position to permit the reproductive organ of the user to extend through the opening and into a surrounding environment, thereby enabling the user to urinate.