The main complication of high uric acid is gouty arthritis, which causes sudden onset of joint swelling and pain, resulting in painful joints that affect the patient’s movement. Also, high uric acid can lead to uric acid nephropathy, which is most commonly associated with creatinine abnormalities and the formation of urinary stones, and in severe cases, blockage of the urinary tract, leading to acute renal failure. For patients with elevated blood uric acid, the cardiovascular and cerebrovascular risks are also greatly increased, and patients may develop complications such as brain infarction and heart attack. Therefore, patients with high blood uric acid must pay attention to the need for a low purine diet and, if necessary, additional uric acid-lowering medication.