The ureterorenoscope has an instrument head (6) arranged on a distal end of a shaft (4) and continuously tapered at two peripheral sections in a distal direction in wedge-like manner. The peripheral sections are diametrically faced away from each other. An end face is formed on a distal end of the head. A guide channel for an observation optics and a guide channel for an illumination unit run out at the end face. Instrument channels run out at one of the peripheral sections. A laser probe is limitedly displaced in the instrument channels in a longitudinal direction of the instrument channels.
