An abnormal blood uric acid of 506 μmol/L suggests elevated blood uric acid. Common causes of elevated blood uric acid include increased uric acid production and decreased uric acid excretion. Normal blood uric acid level for women is 89~357μmol/L, men are 150~416μmol/L, under normal diet, non-same day twice fasting blood uric acid greater than 420μmol/L for hyperuricemia. Blood uric acid 506μmol / L suggests elevated blood uric acid, blood uric acid elevation common causes of increased uric acid production and decreased uric acid excretion. 1. Increased uric acid production: increased uric acid production is common in primary gout caused by hereditary enzyme deficiency, and secondary gout caused by malignant tumors and other massive cell destruction. 2. Decreased excretion of uric acid: about 2/3 of uric acid is excreted through the kidneys, most of the patients with persistent hyperuricemia have defects in renal processing of uric acid, which is manifested as decreased excretion of uric acid. Decreased glomerular filtration rate is a common cause of hyperuricemia in chronic renal insufficiency. If the blood uric acid is elevated, it is recommended to go to the hospital in time for standardized treatment under the guidance of the doctor.