PROBLEM TO BE SOLVED: To provide a catheter or the like which is hardly broken and is rich in flexibility.SOLUTION: The catheter 49 includes: a distal tube 21 and an intermediate tube 22 whose ends are connected with each other； a core wire 11 which is separated from the inner walls of both tubes 21 and 22 by being supported by transition parts 19 of the insides of both tubes 21 and 22； and a reinforcing tube 13 which separates a part being a tube covering the core wire 11 and extending from the transition part 19 from the inner wall of the intermediate tube 22 positioned on the whole periphery.
