Understanding gout

Where the crystals come from

Your body makes urate as it breaks down purines—substances found in your own cells as well as food. The amount in your blood depends on how much you produce and how much you remove. When that balance leaves urate persistently high, crystals are more likely to form. A high blood result alone, though, is not the same as a gout diagnosis. S06

Why it can seem to come and go

A flare can feel like a sudden injury, particularly the first time. Then the symptoms ease, sometimes leaving a long quiet stretch. That interval does not necessarily mean the crystals have gone. The big toe is a familiar site, but ankles, knees, hands, and other joints can be affected too. S03 S06

A useful plan has more than one job

Good care starts with checking the diagnosis and considering other causes, especially infection. It then addresses pain and inflammation, whether long-term urate-lowering treatment is appropriate, and how to monitor that treatment. Kidney health, other conditions, and your existing medicines all belong in that conversation. S02 S03

You need a plan for the days you hurt and the days you feel fine.

Four terms you’ll see

• Urate or uric acid: the substance measured in a blood test.
• Hyperuricemia: a high blood urate level.
• Intercritical gout: the interval between flares.
• Tophus: an organized crystal deposit with a surrounding tissue response; the plural is tophi. S06

None of these terms tells your whole story. Neither does a food diary. Gout involves several influences, including genetics, medicines, and how the body handles urate. It is not evidence of a personal failing. S02

Related pages

• Causes and risk factors
• Uric acid, urate and purines
• Stages and progression
• Common gout misconceptions

Sources

• S02: 2020 American College of Rheumatology Guideline for the Management of Gout
• S03: NICE NG219: Gout, diagnosis and management, recommendations
• S06: NIAMS: Gout overview, symptoms, causes and risk factors