[Object] It is an object of the present invention to provide an affected part thrusting member for a manipulative treatment instrument capable of firmly gripping a treating point and precisely thrusting only the treating point even if bones are densely arranged or even if the treating point is covered with a relatively thick muscle or fat.[Solving Means] An affected part thrusting member which is detachably attached to a thrusting member is made of elastic material such as rubber and synthetic resin. The affected part thrusting member is provided at its tip end with a reduced-width treating surface (1c, 2c, 3c) having a small area, and the treating surface is provided at its side with a relief surface (1d, 2d, 3d) for releasing tissue such as muscle and skin. Since the relief surface is formed, it is possible to firmly grip the treating point, and to precisely thrust only the treating point by the treating surface.
