What is hyperuricemia?

Written by Chen Xie
Endocrinology
Updated on August 31, 2024
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Hyperuricemia refers to a condition where, under normal purine diet, fasting blood uric acid levels exceed 420 micromoles per liter in males and 360 micromoles per liter in females. Uric acid is the final metabolic product of human purine compounds. Disorders in purine metabolism lead to hyperuricemia, which is influenced by various factors including genetics, gender, age, lifestyle, dietary habits, medical treatments, and the level of economic development. Clinically, hyperuricemia can be classified into primary and secondary types. Common clinical manifestations mainly include gout, and possibly arthritis, which are closely related to hypertension, diabetes, hyperlipidemia, coronary heart disease, and renal impairment. Therefore, it is necessary to control hyperuricemia.

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Hyperuricemia manifestations

Most cases of hyperuricemia usually have no obvious clinical symptoms, and it can take years to decades from the increase in blood uric acid to symptom onset, with some individuals never exhibiting obvious clinical symptoms throughout their lifetime. However, as age increases, the incidence of gout becomes higher. When accompanied by acute gouty arthritis, patients may experience severe joint pain. If blood uric acid levels remain high over a long period, this can lead to the formation of gouty tophi and uric acid stones, among other issues.

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Is hyperuricemia dangerous?

Hyperuricemia is generally diagnosed when the blood uric acid level in males exceeds 420 micromoles per liter and in females exceeds 360 micromoles per liter. Some patients with hyperuricemia are asymptomatic, but others may develop gouty arthritis, characterized by local joint redness, swelling, heat, and pain, and even limited mobility. Some patients may develop gouty nephropathy, leading to abnormal kidney function. There are also instances of patients developing tophi, which can cause joint deformity and even limited mobility. Therefore, if hyperuricemia is not controlled promptly, it poses certain risks and may lead to complications such as tophi, gouty arthritis, and gouty nephropathy.

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Are hyperuricemia and high uric acid the same thing?

Firstly, hyperuricemia and high uric acid levels refer to the same concept, defined as blood uric acid levels greater than 420. This condition is described as asymptomatic hyperuricemia, which does not require special treatment at this stage, but it does necessitate changes in lifestyle habits such as abstaining from alcohol, avoiding eating animal organs, seafood, and high-protein foods, not drinking carbonated beverages, and losing weight if obese, to help control body weight. After changing these lifestyle habits, a recheck of the uric acid levels should be done in two weeks to see if there has been a decrease. If the levels have not decreased at that time, sodium bicarbonate tablets can be used to alkalinize the urine. Additionally, increasing water intake to promote the excretion of uric acid and monitoring the dynamic changes in uric acid levels are needed. Once joint pain occurs, which indicates an acute gout attack, proper uric acid-lowering medication is required. (Please undergo medication under the guidance of a professional physician, and do not self-medicate blindly.)

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Hyperuricemia and Its Complications

Hyperuricemia mainly refers to the elevation of uric acid levels in the blood, with levels exceeding 420 umol/l in males and 360 umol/l in females being diagnostic criteria. Some patients with hyperuricemia may not show symptoms, but if not controlled, complications can arise such as gouty arthritis, which manifests as local joint redness, swelling, heat, and pain, and even limited mobility. If it affects the kidneys, it leads to gouty kidney, which is characterized by abnormal kidney function and elevated creatinine levels. Therefore, if diagnosed with hyperuricemia, it is advisable to control diet, drink plenty of water, and seek timely medical treatment.

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Can people with hyperuricemia drink alcohol?

Patients with hyperuricemia are advised to avoid drinking alcohol. Especially liquors such as baijiu and beer, which have high purine content, are contraindicated for patients with hyperuricemia. Furthermore, if hyperuricemia is diagnosed with high levels of uric acid, one should abstain from alcohol, and also pay attention to diet by avoiding foods high in purines to prevent complications such as gouty arthritis and gouty kidney.