An endoscope, especially for urological applications, comprising a hollow shaft, an optical viewing system which has a fiber optical source of illumination and which is positioned inside the hollow shaft, and an optical fiber which is preferably positioned inside the hollow shaft together with the optical viewing system, which is connected to an external laser light source at its proximal end and the distal end of which is bent away from the axis of the shaft, characterized by a rigid holding tube accepting the optical fiber, which extends through the hollow shaft in parallel to the optical viewing system and the distal end of which is bent away from the axis of the hollow shaft by a fixed angle of 10.degree. C. to 110.degree. C. and positioned fully within the cross section of the hollow shaft, the optical fiber, which protrudes over the proximal end of the holding tube, being removably connectable to a mother fiber which leads to the laser light source by way of a plug-type connector.