1.Urinary routine: it can be found more oxalate urinary stones or phosphate crystals in the urine with or without red blood cells; if there are stones combined with infection, it can also be found that there are pus cells in the urine; 2.Abdominal plain film: this is the most valuable test for the diagnosis and treatment of urinary stones, about 95% of the patients with stones can be shown on the X-ray film. If necessary, intravenous pyelogram can be done to understand the kidney function and hydronephrosis. 3.B ultrasound: It is economical and easy to diagnose positive stones and hidden stones that cannot be detected on X-ray, but the disadvantage is that it is less satisfactory to show stones in the middle and lower ureter. 4.CT examination: It can be used for patients with stones that cannot be visualized on X-ray, but it is more expensive and not included in the routine examination. 5.Cystoscopy + Retrograde contrast: this method is mainly used for patients with less than optimal IVP or patients who are allergic to contrast.