Hyperuricaemia (High Uric Acid): Managing Long-Term Levels in the UK

Hyperuricaemia is the medical term for having high levels of uric acid in your blood. Uric acid is a waste product created when the body breaks down chemicals called purines, which are found naturally in your cells and in certain foods. Most uric acid dissolves in the blood, passes through the kidneys, and leaves the body in urine.

In the UK, hyperuricaemia is increasingly common, often linked to metabolic factors. When levels become too high, the acid can form sharp, needle-like urate crystals. These crystals often settle in the joints or kidneys, leading to painful conditions like gout or renal stones. While not everyone with high uric acid will develop these symptoms, persistent hyperuricaemia is a significant risk factor for long-term joint damage.

There are two main reasons why uric acid levels rise: your body is producing too much of it, or your kidneys are not excreting enough. Common risk factors include:

• Diet: Consuming foods high in purines, such as red meat, organ meats, and certain seafood (like sardines or mussels).
• Alcohol: Specifically beer and spirits, which interfere with the removal of uric acid from the body.
• Fructose: High intake of sugary drinks and processed foods.
• Weight: Being overweight causes the body to produce more uric acid and makes it harder for the kidneys to eliminate it.
• Medical Conditions: Kidney disease, high blood pressure, and diabetes are frequently associated with hyperuricaemia.
• Medications: Certain drugs, such as diuretics (water tablets) used for hypertension, can raise levels.

Interestingly, many people with hyperuricaemia have no outward symptoms; this is known as asymptomatic hyperuricaemia. However, if crystals begin to form, you may experience:

Gout

This is a type of inflammatory arthritis characterised by sudden, severe attacks of pain, swelling, and redness, most commonly in the big toe, but also in the ankles, knees, and wrists.

Kidney Stones

High levels of uric acid can lead to the formation of stones in the urinary tract, causing intense pain in the back or side, blood in the urine, and nausea.

Tophi

In chronic cases, small white or yellow lumps of urate crystals can form under the skin, particularly around the finger joints, elbows, or ears.

The management of hyperuricaemia is twofold: lifestyle modifications and pharmacological intervention, as outlined by NICE (National Institute for Health and Care Excellence) guidelines. Initial steps usually involve:

• Hydration: Drinking plenty of water helps the kidneys flush out uric acid.
• Dietary Adjustments: Reducing intake of high-purine foods and avoiding sugary snacks. The NHS recommends a balanced diet rich in vegetables and low-fat dairy.
• Weight Management: Gradual weight loss can significantly lower serum urate levels.

If lifestyle changes are insufficient or if you suffer from frequent gout attacks, a GP may prescribe Urate-Lowering Therapy (ULT). The most common medication in the UK is allopurinol, which works by reducing the production of uric acid. Another option is febuxostat. These are usually intended for long-term, daily use to keep levels stable.

Managing a chronic condition like hyperuricaemia requires consistency. Speaking to an online doctor can be a convenient way to discuss your risk factors and management plan. You should consider a consultation if:

• You have had a previous diagnosis of gout and want to discuss preventative treatment.
• You have received blood test results showing high uric acid and need help interpreting what they mean for your health.
• You need advice on lifestyle changes or weight loss tailored to your specific medical history.
• You require a review of your current medications to ensure they are not contributing to high levels.

Our online GPs can provide evidence-based advice, suggest appropriate monitoring, and help you understand the long-term implications of your uric acid levels without the need for a face-to-face appointment.

For those on medication like allopurinol, regular blood tests are essential. In the UK, the goal of treatment is typically to maintain a serum urate level below a certain threshold (usually 300 µmol/L or 360 µmol/L depending on severity). Monitoring ensures that the dosage is correct and that the uric acid is low enough to allow existing crystals to dissolve over time. Skipping monitoring or medication can lead to a rebound in levels and a return of painful symptoms.