According to the present invention, there is provided a catheter which can achieve satisfactory operability and backup capability. According to the present invention there is provided a catheter having a lumen which is introduced into and indwelled in a body lumen. The catheter includes a deformable region that is parallel to the lumen of the catheter, and that extends in an axial direction. The deformable region is configured to be located on an inner side of a curved section when the catheter is bent so as to form the curved section. At least a portion of an outer surface of the catheter is covered with a surface lubricating layer. On the outer surface of the catheter, a less lubricous portion which is less lubricous than the surface lubricating layer is disposed in at least a portion of the deformable region, and the surface lubricating layer and the less lubricous portion are disposed at the same position in the axial direction of the catheter.
