[Object] Provided is a stent of which the length during expansion is unlikely reduced and which has satisfactory flexibility so as to be able to pass through a biological lumen. [Means for Resolution] In a stent 20, the number of mountains 31 in a first annular portion 51 and the number of mountains in a second annular portion 52 between the first link portions 61 adjacent to each other in a circumferential direction D2 differ from each other. The first link portions are positioned on a first line 71 parallel to an axial direction D1 and the second link portions 62 are positioned on a second line 72 parallel to the axial direction, in a state where a plurality of annular reference bodies 40 are repeatedly arranged in the axial direction.
