The invention provides a medical appliance, an endoscope overtube and an endoscope apparatus. The medical appliance of the present invention includes a bending portion 33, an operation portion 3b, bending operation wires 5 pulled and loosened by bending operation, coil pipes 4 in which the bending operation wires 5 are inserted, and coil pipe receivers 6 and cylinders 7 that include compression coil springs 8 and support the proximal end portions of the coil pipes 4 so as to be able to move along directions in which the bending operation wires 5 extend.
