1. Metabolic abnormality: With the gradual accumulation of metabolites in the body, stones are easily formed in the end.

Second, dietary factors: If you eat foods with high oxalic acid content for a long time, it may cause stones, such as spinach, potatoes and onions. Secondly, if you usually drink less water, the urine will be concentrated, and the substances in the urine will form stones after deposition.

Third, urinary tract diseases: If there is urinary tract infection or urinary tract obstruction, it is easy to form stones after a long time.

When kidney calculi is found, you should go to the hospital in time to know the size of the stone and treat it. At present, shock wave lithotripsy or ureteroscopic lithotripsy can be adopted.