Provided are a stent to be placed in the bile duct and a process for producing the stent, the stent hollow being less apt to be blocked even when the stent is placed in the bile duct for a long period. This stent (10) to be placed in the bile duct is either a stent (10) that comprises a stent base (20) constituted of a cylindrical metal mesh tube and a covering member (30) with which the outer periphery and/or inner periphery of the stent base (20) has been covered or a stent (10") constituted of a cylindrical resin tube (20), the inner peripheral surface of the stent having been coated with a resin layer (40) with resistance to sludge formation that comprises a polymer obtained by polymerizing 2-methoxyethyl acrylate. This stent to be placed in the bile duct is produced by applying a coating fluid that contains 0.1-0.5 mass% polymer obtained by polymerizing 2-methoxyethyl acrylate, to the inner peripheral surface of a stent, thereby coating the inner peripheral surface of the stent with a resin layer having resistance to sludge formation and comprising the polymer.
