[Current trends in flexible ureteroscopy: an update]

Flexible ureteroscopy (fURS) has become a success story in urology. Since its implementation into the treatment of urolithiasis, fURS has demonstrated excellent clinical performance and safety. In recent years, the spread of disposable ureteroscopes has shaped the field of endoscopic stone treatment. However, the primary advantage of these devices is that they improve the workflow in urology theatres (no sterilisation, no repair costs) and possibly minimise bacteria transfer in working channels rather than being a real technological "game changer". Novel disruptive improvements such as automatic laser lithotripsy or intrarenal pressure and temperature control in real time are still waiting to enter the clinical routine. These innovations might take fURS to the next level and disruptively change endoscopic stone treatment.