Uric acid 447 μmol/L is not normal and is outside the normal range and is considered hyperuricemia. Uric acid is the end product of purine metabolism, and urate forms crystals that are deposited in a variety of tissues, including the kidneys and synovial membranes of joints, causing tissue damage. Hyperuricemia is diagnosed by fasting blood uric acid levels >420 μmol/L on two occasions not on the same day on a daily diet. Therefore, uric acid 447μmol / L is not normal, beyond the normal range, can be considered hyperuricemia. There is a relationship between high uric acid and a high-purine diet. If a patient has an increased purine intake, such as eating animal offal and broth, the uric acid level will be elevated. Patients with persistent high uric acid will also have decreased uric acid excretion, including decreased glomerular filtration rate, increased tubular reabsorption, decreased tubular secretion, and urate crystal deposition. If patients find elevated uric acid levels, it is recommended that they go to a regular hospital in a timely manner and receive standardized treatment under the guidance of a doctor.