In a flexible tube for an endoscope, a plate-shaped first element wire is spirally wound, and a first spiral having a first contact portion in which adjacent portions along the longitudinal axis are in contact with each other. A tube, a flexible outer skin which is provided on the outer peripheral side of the first spiral pipe and is bent with respect to the longitudinal axis together with the first spiral pipe, the outer skin and the first spiral pipe Is provided between the first wire and the second wire, and the second wire is spirally wound. The width of the second wire along the longitudinal axis is narrower than that of the first wire, and the second wire is outside the first contact portion. And a second spiral tube having a larger number of turns per unit length than one spiral tube.内視鏡用可撓管は、板状の第１の素線が螺旋状に巻回されており、長手軸に沿って隣接する部分同士が密着した第１の密着部を有する第１の螺旋管と、前記第１の螺旋管よりも外周側に設けられ、前記第１の螺旋管とともに前記長手軸に対して曲げられる、可撓性を有する外皮と、前記外皮と前記第１の螺旋管との間に設けられ、第２の素線が螺旋状に巻回されており、前記第１の素線よりも前記長手軸に沿う幅が狭く、前記第１の密着部の外側で前記第１の螺旋管よりも単位長さあたりの巻き数が多い第２の螺旋管とを有する。
