The device (1) for washing a person confined to bed or a wound comprises: a first tank (2) comprising a first recipient and a first closing cover; a first bag (20) positionable removably internally of the first tank (2) and containing sterile washing liquid; first means (3) for connecting the first bag (20) to a dispensing group (40) provided by an external system (4) for washing the person confined to bed, or the wound; a first actuator group (10, 110) enabling supply of the sterile washing liquid contained in the first bag (20) to the dispensing group (40) of the external system (4) for washing, via the first means (3) for connecting; a second tank (5) comprising a second recipient and a second closing cover; a second bag (50), preferably empty, positionable removably internally of the second tank (5) and predisposed for containing waste liquid; second means (30) for connecting the second bag (50) to the external system (4) for washing the person confined to bed, or the wound; a second actuator group (11, 1
