Retrograde Intra-Renal Surgery (RIRS) involves removal of small to moderate sized renal stone using a highly advance and miniaturised instrument  flexible ureteroscope. This instrument which has got only half the size of your little finger can reach to all the nuke and corners of your kidney. All these can be achieved thorough native urinary tract without making any holes on your body.

After this procedure patient could leave hospital the very next day and resume his daily routine .  The advantages of this modality compared to traditional ones are that no damage to kidney tissue , least risk of complication as well as maximum stone clearance rate.