PROBLEM TO BE SOLVED: To provide a stent with favorable plasticity, the length of which is little contracted in expansion and capable of passing through a living body lumen.SOLUTION: A stent 20 is so configured that the number of crests 31 in a first annular part 51 between first links 61 that are adjacent to each other in a circumferential direction D2, is differentiated from the number of crests in a second annular part 52. In a state where a plurality of reference annular bodies 40 are repetitively aligned in an axial direction D1, the first links are located on a first line 71 that is parallel to the axial direction, and the second links 62 are located on a second line 72 being parallel to the axial direction.SELECTED DRAWING: Figure 3【課題】拡張時におけるステント長の縮小化が少なく、かつ、生体管腔内を通過することができる良好な柔軟性を備えるステントを提供する。【解決手段】ステント２０は、周方向Ｄ２に隣り合う第１リンク部６１同士の間において第１環状部５１における山３１の個数と、第２環状部５２における山の個数とが異なっている。そして、基準環状体４０を軸方向に繰り返して複数個配列した状態において、第１リンク部を軸方向Ｄ１と平行な第１の線７１上に位置させ、第２リンク部６２を軸方向と平行な第２の線７２上に位置させている。【選択図】図３
