Renal calculi can cause renal colic in acute attack, which is characterized by severe pain and often needs emergency treatment. Generally, symptomatic treatment such as pain relief, spasmolysis and fluid replacement is given clinically. Kidney stones are caused by some factors, such as high concentration or low solubility of lithogenic substances in urine, precipitation crystals growing locally, and gradually forming stones. Renal calculi is a common and frequently occurring disease in urology, which is related to race, heredity, environment, diet, metabolism and urinary system diseases. Pain and hematuria are the main symptoms of kidney stones. Hematuria can be microscopic or gross hematuria, and pain can be dull pain, dull pain, distention pain, colic, etc., mostly located in the waist, ribs or lower abdomen.
