How is hyperuricemia caused?

Written by Li Jing
Rheumatology
Updated on December 19, 2024
00:00
00:00

Hyperuricemia is mostly asymptomatic, meaning there are no uncomfortable symptoms. It is usually discovered during physical examinations or blood tests when the uric acid level is found to be elevated, around 420, which is considered hyperuricemia. What causes it? It is mainly caused by poor lifestyle habits, such as long periods of drinking alcohol, excessive intake of animal organs, seafood, barbecue, and too much protein intake. Additionally, some people may develop high uric acid levels due to prolonged use of diuretics. When hyperuricemia occurs, it is essential to change lifestyle habits, but at this time, no special medication treatment is needed.

Other Voices

doctor image
home-news-image
Written by Zhang Jun Jun
Endocrinology
1min 20sec home-news-image

Pre-symptomatic hyperuricemia

Hyperuricemia in the preclinical phase can be asymptomatic, only showing fluctuating or persistent hyperuricemia during blood tests. From the increase in uric acid to the onset of symptoms, it can generally take several years to decades. Additionally, some changes in the kidneys due to the deposition of uric acid can cause manifestations of gouty nephropathy. Early stages may present intermittent proteinuria and increased urine foam. As the condition progresses, the kidney's concentrating ability may decrease, resulting in increased nighttime urination. Further progression can lead to renal insufficiency, elevated creatinine and urea nitrogen, and possibly swelling and hypertension. In severe cases, acute renal failure may occur, showing symptoms of oliguria or anuria. This type of uric acid nephropathy is primarily due to the deposition in the kidneys, causing episodes of kidney stones and back pain, with stone episodes also accompanied by hematuria. Therefore, the main presentations are associated with the deposition of uric acid in the kidneys during the preclinical phase of hyperuricemia.

doctor image
home-news-image
Written by Lin Xiang Dong
Endocrinology
39sec home-news-image

Causes of hyperuricemia

Hyperuricemia is divided into primary hyperuricemia and secondary hyperuricemia. Primary hyperuricemia is mainly due to a disorder in the metabolism of purines in the body, leading to excessive production of uric acid, which in turn causes hyperuricemia. Prolonged duration can greatly increase the risk of gout. Secondary hyperuricemia refers to hyperuricemia caused by excessive production or excretion obstacles due to some common diseases, the most common being chronic renal failure or some tumors, etc.

doctor image
home-news-image
Written by Li Hui Zhi
Endocrinology
55sec home-news-image

What foods should be avoided with hyperuricemia?

Hyperuricemia generally requires a low-purine diet. So, what foods should be avoided? First, seafood and sea fish, as they have a high purine content and should not be consumed. Second, avoid animal organs like chicken and duck kidneys. Third, abstain from alcohol, especially strong spirits and beer, which tend to raise uric acid levels, so it's recommended to avoid them. Fourth, it is advised not to consume long-cooked broths, such as those commonly enjoyed in Guangdong where the broth is simmered for several hours, as these also have high purine content. Fifth, limit intake of some bean products and various mushrooms, as these should also be consumed minimally.

doctor image
home-news-image
Written by Li Hui Zhi
Endocrinology
44sec home-news-image

What are the harms of hyperuricemia?

The dangers of hyperuricemia: Firstly, some individuals might experience gouty arthritis, characterized by localized joint swelling, redness, heat, and pain, affecting mobility. Secondly, prolonged hyperuricemia can damage the kidneys, leading to chronic renal failure. Thirdly, if hyperuricemia persists long-term, it may result in the formation of tophi. Tophi deposited in joints can cause joint deformities and limited mobility. Additionally, hyperuricemia is an independent risk factor for cardiovascular and cerebrovascular diseases, and thus should be taken seriously.

doctor image
home-news-image
Written by Luo Juan
Endocrinology
1min 7sec home-news-image

Is hyperuricemia contagious?

Hyperuricemia is not contagious. Hyperuricemia refers to a condition where the concentration of uric acid in the blood exceeds the normal upper limit. Typically, for males and post-menopausal females, a blood uric acid concentration greater than 420 µmol/L, or pre-menopausal females with more than 348 µmol/L, is considered hyperuricemia. Most severe cases of hyperuricemia are due to deficiencies in uric acid metabolism enzymes and fall under the category of liver metabolism disorders. Moreover, mild to moderate hyperuricemia is often associated with obesity, type 2 diabetes, hyperlipidemia, hypertension, arteriosclerosis, and coronary heart disease, among others. It is a type of nucleic acid metabolic disease, and therefore, it is not contagious.