A self-expandable stent includes axially arranged wavy-line annular bodies having a first shared linear portion and a second shared linear portion on one end side, a third shared linear portion and a fourth shared linear portion on the other end side, a first bent linear portion coupled with the first and third shared linear portions, a second bent linear portion coupled with the third and second shared linear portions, a third bent linear portion coupled with the second and fourth shared linear portions, and a fourth bent linear portion coupled with the fourth and first shared linear portions. Two of the four bent linear portions have a first equal number of bends and a common form at inversion, and the other two of the four bent linear portions have an equal number of bends different from the first equal number of bends and a common form at inversion.
