A stent comprising: linear struts that define an outer periphery of a cylindrical shape with gaps therebetween; and link portions (120, 130, 220, 320) that connect the struts with the gaps, wherein the struts define a plurality of helical portions formed into a helical shape about an axis extending along an axial direction of the cylindrical shape, and wherein the link portion (120, 130, 220, 320) comprises a first connection section (112, 212, 312) and a second connection section (113, 213, 313) provided integrally with a first helical portion and a second helical portion adjacent to each other, and disposed at positions at least partly overlapping with each other along the axial direction of the cylindrical shape in a state of opposing each other, and a biodegradable material configured to connect the first connection section (112, 212, 312) and the second connection section (113, 213, 313) by being interposed between the first one connection section (112, 212, 312) and the second connection section (113, 213, 313), wherein the first helical portion is disposed on a beginning end side of the plurality of helical portions with respect to the second helical portion, and at least part of the first connection section (112, 212, 312) is disposed on the beginning end side of the plurality of helical portions with respect to at least part of the second connection section (113, 213, 313), wherein the first connection section (112, 212, 312) includes: a first protruding portion (112a, 212a, 312a) protruding toward the second connection section (113, 213, 313), and a first housing portion (112b, 212b, 312b) continuing to the first protruding portion (112a, 212a, 312a) and, the second connection section (113, 213, 313) includes: a second protruding portion (113a, 213a, 313a) protruding toward the first connection section (112, 212, 312), and a second housing portion (113b, 213b, 313b) continuing to the second protruding portion (113a, 213a, 313a), characterized in that the first housing portion (112b, 212b, 312b) of the first connection section (112, 212, 312) is disposed on the beginning end side of the plurality of helical portions with respect to the second housing portion (113b, 213b, 313b) of the second connection section (113, 213, 313). linear struts that define an outer periphery of a cylindrical shape with gaps therebetween; and link portions (120, 130, 220, 320) that connect the struts with the gaps, wherein the struts define a plurality of helical portions formed into a helical shape about an axis extending along an axial direction of the cylindrical shape, and wherein the link portion (120, 130, 220, 320) comprises a first connection section (112, 212, 312) and a second connection section (113, 213, 313) provided integrally with a first helical portion and a second helical portion adjacent to each other, and disposed at positions at least partly overlapping with each other along the axial direction of the cylindrical shape in a state of opposing each other, and a biodegradable material configured to connect the first connection section (112, 212, 312) and the second connection section (113, 213, 313) by being interposed between the first one connection section (112, 212, 312) and the second connection section (113, 213, 313), wherein the first helical portion is disposed on a beginning end side of the plurality of helical portions with respect to the second helical portion, and at least part of the first connection section (112, 212, 312) is disposed on the beginning end side of the plurality of helical portions with respect to at least part of the second connection section (113, 213, 313), wherein the first connection section (112, 212, 312) includes: a first protruding portion (112a, 212a, 312a) protruding toward the second connection section (113, 213, 313), and a first housing portion (112b, 212b, 312b) continuing to the first protruding portion (112a, 212a, 312a) and, a first protruding portion (112a, 212a, 312a) protruding toward the second connection section (113, 213, 313), and a first housing portion (112b, 212b, 312b) continuing to the first protruding portion (112a, 212a, 312a) and, the second connection section (113, 213, 313) includes: a second protruding portion (113a, 213a, 313a) protruding toward the first connection section (112, 212, 312), and a second housing portion (113b, 213b, 313b) continuing to the second protruding portion (113a, 213a, 313a), a second protruding portion (113a, 213a, 313a) protruding toward the first connection section (112, 212, 312), and a second housing portion (113b, 213b, 313b) continuing to the second protruding portion (113a, 213a, 313a), characterized in that the first housing portion (112b, 212b, 312b) of the first connection section (112, 212, 312) is disposed on the beginning end side of the plurality of helical portions with respect to the second housing portion (113b, 213b, 313b) of the second connection section (113, 213, 313).