A stent including linear struts forming an outer periphery of a cylindrical shape in which a gap is formed, a link portion connecting the struts to each other in the gap, and a connection extension portion extending along a connection direction of the link portion. The link portion includes a first curved portion provided on one end in the connection direction, and curves to protrude inward in the radial direction, and a second curved portion provided on the other end of the connection direction, and curves to protrude inward in the radial direction. The connection extension portion includes a first gradually decreasing portion gradually decreasing from the first curved portion toward an edge on one end of the connection direction, and a second gradually decreasing portion gradually decreasing from the second curved portion toward an edge on the other end of the connection direction.
