A medical device according to one embodiment of the present invention includes: a vibration transmission member that comprises a node position of vibration and an area including the node position and a portion at a distal end side relative to the node position, and to which the vibration is transmitted； a first coating that covers a side of the node position of the area； and a second coating that covers a distal end side relative to the first coating of the area and has a thickness smaller than that of the first coating.
