Gout: Causes, Acute Treatment, and Long-Term Prevention

Gout is a crystal-driven inflammatory arthritis. It happens when excess urate, also called uric acid, forms sharp monosodium urate crystals in or around a joint. Those crystals can sit silently for months or years, then trigger sudden inflammation and severe pain.

AIHW estimates that around 224,000 Australians were living with gout in 2022, and about three quarters were male. The condition becomes more common with age, kidney disease, metabolic risk factors, and some medicines. It can be controlled, but the control strategy is often misunderstood: treating the flare is only the first step; preventing future flares means keeping urate below target over time.

Urate is a normal waste product from purine breakdown. Most urate is produced by the body, and the kidneys remove much of it through urine. When production is high or excretion is reduced, urate can build up in the blood. Once blood urate remains above the crystal-forming threshold, crystals can deposit in joints, tendons, bursae, and soft tissue.

The painful flare is not the crystal forming in that moment. It is the immune system reacting to crystals already present in the joint. That immune reaction causes heat, swelling, redness, stiffness, and pain.

This explains why gout can be episodic. A person may feel normal between flares while crystals remain present. Without long-term urate control, attacks can become more frequent, involve more joints, and eventually lead to tophi, chronic joint damage, and kidney stones.

A typical flare develops quickly and often peaks within the first day.

• Sudden severe pain, often overnight
• Swelling, warmth, redness, and marked tenderness over the joint
• Pain with light touch, footwear, bedsheets, standing, or walking
• Reduced joint movement
• One joint affected at first, although recurrent gout can become polyarticular
• Common sites including the big toe, midfoot, ankle, knee, wrist, fingers, and elbow

The big toe joint is the classic site, but gout is not limited to the toe. A knee, ankle, wrist, or finger flare can still be gout, especially in someone with previous flares or high urate.

Diagnosis starts with the pattern: sudden inflammatory joint pain, site, timing, previous attacks, medicines, kidney function, alcohol intake, diet pattern, family history, and other causes of joint swelling.

Blood urate is useful, but it is imperfect. Australian Prescriber notes that a normal or low serum urate does not exclude acute gout because urate may not be elevated during the flare itself. Healthdirect notes that a joint-fluid sample can be checked for urate crystals; this is the most definitive test when the diagnosis is uncertain.

Other tests may be used depending on the situation:

• Blood tests for urate, kidney function, inflammatory markers, glucose, lipids, and other risk factors
• Joint aspiration if infection, crystal arthritis, or another diagnosis is possible
• Ultrasound or dual-energy CT in selected uncertain or recurrent cases
• X-ray when recurrent attacks raise concern for joint damage

The dangerous mimic is septic arthritis, a joint infection. It can destroy a joint quickly and can be life-threatening. A hot, swollen joint with fever or systemic unwellness should not be assumed to be gout.

Seek urgent assessment for:

• Fever, chills, confusion, faintness, or feeling very unwell
• A first-ever hot, swollen joint where the diagnosis is uncertain
• Severe spreading redness beyond the joint
• Recent joint surgery, injection, wound, or infection elsewhere
• Immunosuppression, chemotherapy, diabetes with infection concern, or prosthetic joint
• Severe pain after injury, fall, or inability to bear weight
• Symptoms that are worsening despite appropriate treatment

Acute treatment focuses on reducing inflammation and pain. Healthdirect notes that starting treatment early, within 24 hours, helps decrease symptoms. Australian Prescriber lists NSAIDs, colchicine, and corticosteroids as first-line options, with the safest choice depending on the person.

NSAIDs

Treat to target

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Preventing attacks means measuring urate, lowering it to target, and maintaining the plan long enough for crystals to dissolve.

NSAIDs such as naproxen or ibuprofen can reduce pain and swelling during a flare. They are not suitable for everyone. Kidney disease, stomach ulcer history, blood thinners, heart failure, uncontrolled blood pressure, and some other medicines can change the risk.

Colchicine

Colchicine can help when taken early, but dosing matters. Australian Prescriber describes low-dose colchicine as effective with fewer adverse effects than high-dose regimens. It can interact with several medicines and needs extra caution in kidney impairment.

Corticosteroids

Corticosteroids may be used as tablets or as an injection into the affected joint. They can be useful when NSAIDs or colchicine are unsuitable, or when a single accessible joint is involved.

Home Measures

Home care does not replace flare medicine when medicine is needed, but it can reduce discomfort.

1. 1

   Rest the affected joint and avoid loading a painful foot, ankle, or knee.

2. 2

   Use an icepack wrapped in cloth for 10-15 minutes at a time.

3. 3

   Elevate the limb if swelling is prominent.

4. 4

   Drink enough water, especially during illness or hot weather.

5. 5

   Avoid alcohol during the flare.

6. 6

   Do not massage an intensely inflamed joint.

Flare relief and prevention are different jobs. Anti-inflammatory medicines calm the flare, but they do not remove the crystal burden. Urate-lowering therapy aims to keep serum urate low enough that crystals stop forming and existing deposits slowly dissolve.

RACGP and Australian Prescriber describe a treat-to-target approach. For most people, the serum urate target is below 0.36 mmol/L. For people with tophi, a lower target below 0.30 mmol/L may be considered. Urate levels are checked and therapy is adjusted until the target is reached and maintained.

Urate-lowering therapy is usually considered when there are:

• Two or more flares per year
• Tophi
• Chronic kidney disease
• Uric acid kidney stones
• Recurrent attacks, severe attacks, or high-risk comorbidities

Allopurinol is the first-line urate-lowering medicine used in Australia. It reduces uric acid production by inhibiting xanthine oxidase. The usual principle is to start low and increase gradually while monitoring serum urate and tolerability.

Important points:

• Allopurinol is prevention medicine, not a painkiller for the current flare.
• Do not stop established allopurinol during a flare unless a clinician tells you to.
• Starting or changing urate-lowering therapy can trigger flares at first, so anti-inflammatory prophylaxis may be used during the early months.
• Kidney function, rash history, interactions, and ancestry-related HLA-B*5801 risk may affect starting dose and monitoring.
• A rash, mouth ulcers, fever, or severe skin reaction after starting allopurinol needs prompt medical advice.

Febuxostat and uricosuric medicines may be used in selected cases, usually when allopurinol is not tolerated or the urate target cannot be reached. Specialist input is often helpful for difficult gout, tophi, kidney impairment, multiple medicine interactions, or uncertain diagnosis.

Diet matters, but it is not the whole disease. Arthritis Australia emphasises that alcohol is not the sole cause of gout and that vitamin C or cherry juice should not be relied on to lower uric acid. Healthdirect notes that medicine plus a healthy balanced diet is enough for many people to manage gout.

Practical prevention focuses on the highest-yield changes:

Safety boundary

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Fever, first-ever swelling, spreading redness, injury, or systemic illness need urgent assessment for infection or other causes.

• Reduce beer and spirits, especially binge drinking.
• Reduce sugar-sweetened drinks and fruit juice high in fructose.
• Limit organ meats, large red-meat portions, and high-purine seafood if they trigger flares.
• Avoid crash dieting and fasting, which can precipitate flares.
• Lose weight gradually if overweight.
• Stay hydrated, especially during illness, heat, travel, or heavy exercise.
• Keep low-fat dairy, vegetables, and balanced meals in the diet rather than over-restricting.

Vegetable purines are not treated the same as animal purines. Broadly avoiding vegetables such as spinach or asparagus is usually unnecessary and can make the diet worse overall.

Gout often travels with other health risks. AIHW links hyperuricaemia with obesity, diabetes, hypertension, heart disease, poor kidney function, kidney disease, and diets high in meat, seafood, and alcohol. RACGP also highlights comorbidities such as hypertension, chronic kidney disease, obesity, diabetes, and cardiovascular disease.

Medication review matters because some medicines can raise urate, including thiazide and loop diuretics and low-dose aspirin. Do not stop these medicines yourself; they may be essential. The point is to review the whole risk picture with a clinician so gout prevention, blood pressure, kidney function, and heart risk are managed together.

Seek review if:

• This is your first suspected gout attack.
• Flares are becoming more frequent, lasting longer, or affecting more joints.
• You have two or more flares per year.
• You have kidney disease, kidney stones, diabetes, heart disease, or complex medicines.
• You have visible or palpable lumps that may be tophi.
• Your urate has not been checked recently.
• You are taking allopurinol but still flaring.
• You are unsure whether symptoms are gout, infection, injury, or another arthritis.

The best gout plan is not just "take something when it hurts." It is a loop: confirm the diagnosis, treat flares early, identify red flags, measure urate, lower urate to target when indicated, and keep monitoring until flares stop.

• AIHW: Gout
• healthdirect: Gout
• healthdirect: Medicines for gout
• RACGP: The management of gout: Much has changed
• Australian Prescriber: The management of gout
• Arthritis Australia: Gout