Retrograde Intrarenal Surgery (RIRS) is a procedure for doing surgery within the kidney by accessing the kidney from the natural urinary passage.
Uretero Reno Scopy (URS) is a procedure to remove stones from the ureter through the natural urine passage.The procedure is done under spinal or general anaesthesia.
Percutaneous nephrolithotomy (PCNL) is a minimally-invasive procedure for removal of kidney stones through the back by a small puncture wound.