Blood uric acid 850μmol / L is usually more serious, at this time has belonged to the hyperuricemia, may cause gout, uric acid nephropathy and other adverse consequences, it is recommended that the patient to the hospital in a timely manner. Uric acid is the end product of purine metabolism, mainly by the cellular metabolic decomposition of nucleic acids and other purine compounds and purines in food by the enzyme decomposition and production. The saturation concentration of uric acid in the body at 37°C is about 420µmol/L. Above this concentration, urate forms crystals that are deposited in a variety of tissues, including the kidneys and synovial membranes of joints, causing tissue damage. Fasting blood uric acid >420µmol/L on two occasions not on the same day is currently defined as hyperuricemia. Blood uric acid 850µmol/L is already at a high level. If left untreated, it may lead to gout, uric acid nephropathy and other conditions that require attention. Patients with hyperuricemia need to stop smoking, limit alcohol, and reduce the intake of high-purine foods such as animal offal, mushrooms, seafood, etc., and drink plenty of water every day. Medications such as febuxostat, allopurinol, and benzbromarone can also be used under doctor’s supervision to relieve the condition. If the blood uric acid is found to be elevated, it is recommended to go to the hospital in time and follow the doctor’s instructions to standardize the diagnosis and treatment.