<;P>;PROBLEM TO BE SOLVED: To provide a catheter, easily capable of performing delivery or passing a lesion even with a very narrow lesion such as a CTO lesion on the far end side of a bent vessel, restricting an X-ray impermeable marker disposed at a tip of a catheter from being caught, and reducing risk of removal of a forward end tip including a ring marker even in a case where it is caught. <;P>;SOLUTION: The catheter includes an inner layer, an outer layer, a reinforcing layer disposed between them, the X-ray impermeable marker disposed at the tip of the catheter, and a hub disposed on the operator's side of the catheter, which are disposed almost along the whole length of the catheter. At least part of the X-ray impermeable marker is tightly attached to the inner layer and/or the reinforcing layer by fusion. <;P>;COPYRIGHT: (C)2011,JPO&INPIT