A catheter that includes a catheter shaft including an inner layer, a coil body that is formed of a wire spirally wound around an outer periphery of the inner layer, and an outer layer that covers the coil body, and the coil body includes a joint part where adjacent wires are jointed, and a main body part other than the joint part, the joint part is positioned closer to a distal end side of the catheter shaft than the main body part, the joint part has a slit that is a notch passing through the joint part in a radial direction of the catheter, one end of the slit is located closer to the distal end side than the other end of the slit, and between the wires included in the joint part, all parts except a part overlapping the slit are jointed.
