⚠️ Educational only. LabPlain does not provide medical advice or diagnosis. Always discuss your specific results with your healthcare provider.
What this test measures
Uric acid is a waste product created when your body breaks down substances called purines — compounds naturally found in your cells and in certain foods like red meat, seafood, and alcohol. Normally, uric acid dissolves in the blood, travels to the kidneys, and leaves the body through urine.
If your body produces too much uric acid or your kidneys can't remove enough of it, levels can build up in the bloodstream. Over time, excess uric acid may form sharp crystals in the joints or kidneys.
Doctors commonly order a uric acid test when evaluating gout, kidney stones, kidney disease, unexplained joint pain, or conditions that increase cell breakdown such as chemotherapy treatment.
Normal reference range
Men: 3.5–7.2 mg/dL | Women: 2.6–6.0 mg/dL
Reference ranges vary slightly between laboratories, and some labs use different units. Always compare your result to the reference range printed on your own report.
Uric acid levels can also fluctuate based on hydration, diet, alcohol intake, medications, and recent illness.
💧 Hydration matters
Dehydration can temporarily raise uric acid levels because less fluid is available for the kidneys to flush it out. Drinking adequate water before routine testing may help provide a more accurate baseline result.
What your result might indicate
↑ If High
Elevated uric acid (hyperuricemia) may suggest gout, kidney disease, dehydration, obesity, heavy alcohol use, or a diet high in purines. Some people have high levels for years without symptoms, while others develop painful crystal buildup in joints or kidneys.
↓ If Low
Low uric acid is less common and is usually less concerning. It may occur with certain medications, liver disease, malnutrition, or rare kidney conditions where too much uric acid is lost in the urine.
Symptoms associated with abnormal uric acid
↑ High Uric Acid Symptoms
Sudden severe joint pain (often the big toe)
Red, swollen, warm joints
Kidney stones
Pain during urination
Stiff joints
Limited joint movement
White crystal deposits under the skin
Chronic joint inflammation
↓ Low Uric Acid Symptoms
Often no symptoms at all
Fatigue or weakness
Poor nutrition or weight loss
Frequent urination
Symptoms related to liver disease
Dizziness from dehydration
Medication side effects
Rare kidney-related symptoms
Common causes of abnormal uric acid
What can raise uric acid?
The most common cause of high uric acid is reduced kidney removal. Conditions like chronic kidney disease, dehydration, obesity, high blood pressure, and diabetes can all contribute. Diet also matters — foods high in purines such as red meat, organ meats, shellfish, and beer can increase uric acid production.
Some medications, including diuretics ("water pills"), low-dose aspirin, and certain chemotherapy drugs, may also raise uric acid levels. In some people, genetics play a major role.
What can lower uric acid?
Low uric acid can occur from poor nutrition, liver disease, overhydration, or medications like allopurinol and febuxostat that intentionally lower uric acid to treat gout. Rare inherited kidney disorders can also cause the body to lose too much uric acid through urine.
Tests often ordered alongside uric acid
Uric acid is usually interpreted alongside other kidney and metabolic markers. Your doctor may also order:
Creatinine — evaluates kidney function
BUN (Blood Urea Nitrogen) — another marker of kidney health
eGFR — estimates how well the kidneys are filtering blood
Urinalysis — checks for crystals, blood, or kidney problems
CRP or ESR — inflammation markers sometimes used during gout flare evaluation
What to do next
A single uric acid result doesn't automatically mean you have gout or kidney disease. Many people with mildly elevated levels never develop symptoms, while others may experience painful flare-ups even with modest elevations. Your doctor will interpret your result alongside your symptoms, kidney function, medications, diet, and overall health history.
Questions to ask your doctor
01Could this result explain my joint pain or kidney stone symptoms?
02Are any of my medications raising my uric acid level?
03Do I need treatment now, or should we monitor it over time?
04Should I change my diet or alcohol intake?
05Do my kidney function tests look normal?
06Would seeing a rheumatologist or kidney specialist make sense?
Frequently asked questions
Does high uric acid always mean gout?
No. Many people have elevated uric acid without ever developing gout symptoms. Gout occurs when uric acid crystals build up in joints and trigger inflammation.
What foods are highest in uric acid risk?
Foods high in purines can raise uric acid levels. Common examples include organ meats, red meat, shellfish, beer, and sugary drinks sweetened with fructose.
Can dehydration affect uric acid levels?
Yes. Dehydration reduces the kidneys' ability to remove uric acid efficiently, which can temporarily increase blood levels.
Can uric acid cause kidney stones?
Yes. Excess uric acid can form crystals that contribute to certain types of kidney stones, especially when urine is highly concentrated.
Can uric acid levels be lowered naturally?
Often yes. Staying hydrated, limiting alcohol, reducing high-purine foods, maintaining a healthy weight, and controlling blood sugar can help reduce uric acid levels naturally.