My recent CT stonogram revealed that I have a non-obstructing nephrolithiasis in the left kidney. It is a rod-like calsific density noted at the inferior calyx of the left kidney which measures 1.6 x 0.7cm (+746HU). I knew I had kidney stone measuring 1cm way back in the mid-90s but I was told by my nephrologist that it s non-obstructing and just let it not grow or increase in size, by drinking more fluids. I was not really bothered with it because I have not experienced any symptom of kidney stone. Only now that my younger sister has been diagnosed to have 6 stones that I became concerned hence the CT stonogram. My urologist suggested that I have it removed through ESWL but I am afraid to undergo such procedure. My question is: should I have it removed or just let it stay there and just prevent it from further enlarging? By the way, I am 58 years old and have a family history of kidney disease. My mother passed away 2 years ago due to renal failure. Thank you in advance to those who will reply.