The sanitary chair forms a seat that is a configured for use in a shower and with a commode. A patient sits on a horizontal surface formed by the sanitary chair. One dimension of the horizontal surface is adjustable. The sanitary chair comprises a plurality of legs, a base structure, a rail, a seat cushion, a folding cushion, and a back rest. The base structure forms the horizontal seating surface of the sanitary chair. The plurality of legs raise the base structure above the supporting surface. The seat cushion and the folding cushion forms the horizontal seating surface of the supporting chair. The back rest is a vertically oriented structure that supports the back of the patient. The rail, the seating cushion, the folding cushion, and the back rest are attached to the base structure.
