A stent according to the present invention includes: a stent main body that has a plurality of holes formed in the surface thereof and a circumferential part of which the inside is hollow； and a cover that covers one side of the outer circumferential surface of the stent main body, in which the stent main body has an exterior path that provides a channel through which the body fluid secreted from a diverging duct can flow along the longitudinal direction of the stent main body to the outside of the cover.
