There is provided a stent which can be surely indwelled up to a deeper place than an obstructed or stenosed portion of a tubular organ so as to exhibit an expansion force and keep flexibility.The stent 1 has a plurality of annular units 10 and 20 eachmade of a linear portion 11 which extends circumferentially while folding in a zigzag manner and which is connected annularly, and connection portions 40 which connect axially adjacent ones of the annular units with each other. Predetermined annular units 20 have radiopaque markers 30 each fixedly attached to a midway between one folded portion 13 and a next folded portion 13 in the linear portion 11 located in a predetermined circumferential position.
