A stent, having a central axis that extends in a longitudinal direction of the stent, includes a first strand group and a second strand group. The first strand group and the second strand group are woven together. The first strand group is wound in a right-handed spiral around the central axis and the second strand group is wound in a left-handed spiral around the central axis. A maximum diameter of first strands constituting the first strand group is different from a maximum diameter of second strands constituting the second strand group.
