Gout (gout) is a recurrent inflammatory disease caused by increased production of uric acid due to increased purine biosynthesis or poor uric acid excretion, resulting in elevated uric acid in the blood and deposition of urate crystals in synovial membranes, bursal cartilage and other tissues. The disease is characterized by bifocal monohydrate uric acid crystals found in joint fluid and gout stones. Its clinical features are: hyperuricemia and characteristic acute arthritis due to urate crystals deposition, gout stones, interstitial nephritis in severe cases see joint deformity and dysfunction, often accompanied by uric acid urinary tract stones mostly seen in middle-aged and elderly men with obese body shape and postmenopausal women. With economic development and lifestyle changes, their prevalence is gradually increasing.