Small stones in the kidney without obvious obstructive symptoms do not need to be given surgical treatment. If there are obstructive symptoms, as well as symptoms such as back pain and lumbago, they can be treated by diet, exercise and medication, non-invasive surgery according to the size of the stones, as follows: firstly, stones below 6mm can be treated by drinking more water and exercising appropriately, together with medication, such as lithotripsy granules, most of the stones can be excreted smoothly; secondly, stones above 6mm can be considered Non-invasive extracorporeal shock wave lithotripsy can be considered to break the stones into small particles, and then with more water and oral medication for stone removal; third, if the stones are large and there is obstruction at the distal ureter, the stones can be broken up by non-invasive means.