PROBLEM TO BE SOLVED: To provide a structure preventing falling of adhesive at a flexible tube distal end of an endoscope.SOLUTION: In the structure of the flexible tube distal end of an endoscope, a distal end 14 of an endoscope flexible tube includes a nozzle insertion hole 56 in the axial direction of the distal end 14. The distal end 14 also includes a nozzle 38 that is mounted by being inserted into the nozzle insertion hole 56. The distal end 14 is formed with a screw hole 44 penetrating from an outer peripheral surface of the distal end 14 to the nozzle insertion hole 56. The distal end 14 further includes a screw 46 to be inserted into the screw hole 44. A lateral face of the nozzle 38 is formed with a groove c in which the tip end of the screw 46 is engaged. The nozzle 38 is fixed to the distal end 14 by engaging the screw 46 with the groove c. A space between the screw hole 44 and the screw 46 is filled with adhesive 70. The adhesive 70 is tightly closed by an annular member 32 fitted to the outer peripheral face.
