A guidewire includes a first junction that joins a distal end of an inner coil body and a portion of a core shaft positioned a non-zero distance away from a distal end toward a proximal end; a second junction that joins a proximal end of the inner coil body and the core shaft; a third junction that joins a distal end of the outer coil body and the distal end of the core shaft; and a fourth junction that joins a proximal end of the outer coil body and the core shaft. The outer coil body includes a tapered coil portion and a uniform-diameter coil portion. The inner coil body is disposed inside the uniform-diameter coil portion of the outer coil body. The inner coil body is joined to the core shaft at only the first and second junctions but is not joined to the outer coil body.