A disposable bag having two walls for receiving and conforming to a conventional bedpan (12). A first wall (17) is formed as a liner that conforms to the inner surface (18) of the bedpan (12). After use, the walls are separable such that the second wall may be used as a closure for the liner opening. The bag may be used with a seat portion constructed from foam plastic. The upper exterior contact surface of the bag may be used with antislip paper and the exterior surface of the second wall may have antislip characteristics. The bag may be made from a material degradable in water such as modified gelatine or polyvinyl alcohol film.
