Ostomy appliance

An ostomy appliance comprises: inner and outer walls of flexible sheet material joined together to define a cavity for containing a stomal output, the inner wall comprising an inlet for receiving the stomal output into the cavity; a retractable drain being slidably movable between an extended configuration for draining the stomal output from the cavity and a retracted configuration for storage of the drain; and a guide panel arranged on the inner wall or the outer wall, thereby defining a channel for receiving the retractable drain. The channel may have a length sufficient such that in the retracted configuration substantially all of the retractable drain is slidably received within the channel; the channel may be configured such that the drain can be slidably received in the channel; and/or a push element may be attached to an intermediate portion of the retractable drain, the push element being configured to drive at least a portion of the retractable drain into the channel to slide the retractable drain into the retracted configuration.