A multijointed bending mechanism having a first bending piece, a second bending piece connected to the first bending piece so as to be rotatable around a first rotation shaft, a third bending piece connected to the second bending piece so as to be rotatable around a second rotation shaft, at least two first wires connected to the first bending piece to rotate the first bending piece and at least two second wires connected to the second bending piece to rotate the second bending piece. The second wires are disposed inwards of the first wires with respect to a vertical direction of the first and second rotation shafts.