Liang Qiwei, director of urology department of Heilongjiang Far East Cardiovascular and Cerebrovascular Hospital, reminds you that some dissolved substances in normal urine are precipitated for various reasons, remain in the kidney and grow continuously, and then stones can be formed. The pain caused by kidney calculi can be divided into dull pain and colic. According to the different composition of stones, kidney calculi can be divided into six categories: calcium oxalate stones, calcium phosphate stones, uric acid (urate) stones, magnesium ammonium phosphate stones, cystine stones and purine stones.

In kidney calculi, the drugs below 0.6 are commonly used to expel stones, such as Shenshitong granules and Paishi granules. Above 0.6 is extracorporeal shock wave lithotripsy; Those larger than 2.0 can be treated surgically.