A variety of etiologies can cause hypercitraturia, such as type I renal tubular acidosis, enterogenic hyperoxaluria, absorptive hypercalciuria and renal hypercalciuria, excessive animal protein intake, chronic diarrhea, and oral administration of thiazide diuretics. Some studies reveal that kidney stones are formed in patients with primary hyperparathyroidism only when they have low citrate urine, while stones are not formed in those with normal urinary citrate excretion. Using urinary routine, hypercitraturia is diagnosed when the 24h urinary citrate excretion is measured to be less than 320mg. 1, Clinical and other imaging data when a mass in the kidney area is found or suspected. 2, inflammatory lesions in the kidney area renal tuberculosis, hydronephrosis. 3, kidney injury. 4.Patients who are allergic to iodine agent and contraindicated to imaging. 5.Guided renal area puncture biopsy, suction and other interventional treatment measures.