Symptoms of kidney stones include back or side pain, blood in the urine, and nausea or vomiting. Although kidney stones typically range in size from chickpea to a golf ball, they can also be as small as a grain of sand. While smaller stones can pass through the urinary tract, larger ones may need surgery. Kidney stones, if left untreated, can also damage the kidneys. If one is experiencing a kidney stone, one can consult Dr. Niren Rao, the best urologist in Delhi at Delhi Urology Hospital. He offers various treatments to treat kidney stones. These include PCNL, Mini PCNL, RIRS, and URS. Pay a visit to the clinic to learn more about these treatment options.