Generally speaking, adult men who have acute arthritis, especially the thumb of those affected, must be highly vigilant against the possibility of suffering from gout, if their blood has higher concentrations of uric acid, can be diagnosed as gout. Typical symptoms of individual patients and the concentration of uric acid in the blood is not high, they repeated blood test, examination or take joint fluid, sodium crystallization of uric acid found, can also be diagnosed as gout. Gout has two primary and secondary. As early as the 5th century BC, the Greek physician Hippocrates, gout is a genetic disease. Modern medicine also believe that the primary gout and the enzyme and metabolic defects, and other relevant, most are family history, foreign coverage is 10% -25%, there are similar reports of domestic. The disease was first developed symptoms of age from more than 10 years, until about 80 years old, the average age of 40-year-old from top to bottom. 95% of patients are male adults. Many patients before the onset of symptoms, the concentration of uric acid in the blood have increased significantly. Female patients accounted for about 5 percent, most of the patients in the period after menopause symptoms. Most secondary gout is due to chronic hemolytic anemia, leukemia and myeloma, malignant neoplasms, hyperparathyroidism, such as various kidney a result of renal dysfunction caused by. Gout generally appear first time, often in the original have been a few years after the onset. In addition, high-calorie, high-purine diet and drinking can also be induced gout. According to clinical manifestations of gout can be divided into three categories: ① acute gouty arthritis; ② tophi and chronic arthritis; ③ gouty nephropathy.