CONDITIONS

Gout: Sudden, Severe Joint Attacks Caused by Uric Acid Crystals

Gout produces some of the most intense joint pain in medicine, arriving suddenly and often overnight — but treating an acute attack and preventing future ones are two different jobs that call for two different approaches.

Updated 2026-10-254 min read2 cited sourcesEducational — not medical advice

Illustrative — a joint inflamed by crystal buildup

In short

Gout produces some of the most intense joint pain in medicine, arriving suddenly and often overnight — but treating an acute attack and preventing future ones are two different jobs that call for two different approaches.

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Uric Acid

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01

What Causes a Gout Attack

Gout develops when uric acid, a waste product the body makes when breaking down purines from cells and certain foods, builds up in the blood and forms sharp crystals inside a joint. Those crystals trigger a sudden, intense inflammatory response, which is what makes a gout attack feel so much worse than ordinary joint pain.

The big toe is the classic first site, though gout can also affect the ankle, knee, wrist, or fingers. Attacks often start at night and can go from no symptoms to severe pain, swelling, redness, and warmth within hours.

02

Who Gets Gout

Gout is more common in men, though the risk in women rises after menopause. Being overweight, drinking alcohol, eating a diet high in red meat or sugary drinks, certain medications such as diuretics, and conditions like kidney disease all raise uric acid levels and, with them, the risk of attacks.

A family history of gout also increases risk, since how efficiently the kidneys clear uric acid is partly inherited. Having high uric acid alone doesn't guarantee attacks will happen, but it raises the odds over time.

03

How Doctors Confirm It

A blood test for uric acid is a useful clue, but levels can be normal during an actual attack, so it isn't used alone to confirm the diagnosis. The most definitive test is examining fluid drawn from the affected joint under a microscope for the characteristic needle-shaped crystals.

Doctors also consider the pattern of symptoms, which joint is involved, and how quickly it came on, sometimes supported by ultrasound or other imaging that can show crystal deposits even between attacks.

04

Treating an Attack Versus Preventing the Next One

Treating an acute gout attack and lowering uric acid long-term are two separate goals that use different medications. During a flare, anti-inflammatory drugs, colchicine, or short courses of corticosteroids are used to calm the immediate inflammation and pain.

Long-term uric-acid-lowering therapy, most commonly with medications that reduce uric acid production, is a separate ongoing strategy aimed at preventing future attacks and joint damage. Starting a uric-acid-lowering medication during an active flare can sometimes worsen symptoms temporarily, which is why doctors often wait until the attack settles before starting it, although with frequent flares it can be started sooner. If you already take it, keep taking it during a flare unless your doctor advises otherwise.

05

Living With Gout, and the Outlook

Diet and lifestyle changes, including limiting alcohol and purine-rich foods, staying hydrated, and maintaining a healthy weight, can meaningfully lower uric acid levels alongside medication. Repeated untreated attacks can eventually lead to joint damage and visible uric acid deposits called tophi, so consistent long-term management matters.

A rheumatologist or primary care doctor can manage gout well for most people, and with steady uric-acid control, many people go from frequent attacks to years without one. Gout responds predictably to treatment, which makes it one of the more manageable chronic joint conditions when addressed consistently.

A painful joint: how fast to act

Routine — see a doctor

Symptoms of gout for the first time, or attacks that your usual treatment is not settling: book a visit with a doctor.

Same-day — call promptly

Sudden pain and swelling in a joint with a very high temperature, feeling hot, cold or shivery, feeling sick or unable to eat, or pain that keeps getting worse: see a doctor today. The NHS says this can mean an infection inside the joint, which needs urgent treatment.

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