[Task] To provide a stent which can prevent the overall stent from randomly collapsing when expanded, even if the stent is formed of a biodegradable polymer.[Means for Resolution] A stent 100 has a configuration which is formed into a cylindrical shape by a linear strut 101. The strut has outer peripheral portions 102 extending around an axial direction of the cylindrical shape and a connection portion 103 connecting the outer peripheral portions to each other in a gap formed by the outer peripheral portions, and has a configuration in which the outer peripheral portions and the connection portion are integrally formed of a biodegradable polymer. In addition, a portion of the strut includes a fragile portion 104 which is more fragile than other different portions of the strut, and in a state where the fragile portion includes a component the same as that of the other portions, the biodegradable polymer itself is fragile.
