Metabolic abnormalities, increased excretion of calcium, oxalic acid, uric acid and other substances in urine, increased uric acid excretion in gout patients, changes in urine pH, reduced urine volume, increased concentration of organic salts, so diabetic patients are prone to the onset of urinary tract stones. Local factors, urinary tract obstruction, urinary tract infection, and foreign bodies in the urinary tract are prone to stone formation. Increased concentration of drugs in the urine, such as amineptine, sulfonamides, vitamins D and C, and corticosteroids can induce stone formation!