Gout is a type of arthritis caused by uric acid crystals building up in your joints
Gout happens when a substance called uric acid accumulates in your blood and forms needle-shaped crystals inside a joint. Your body produces uric acid when it breaks down purines, which are compounds found in certain foods and drinks. Normally your kidneys filter uric acid out through urine, but sometimes it builds up faster than your body can remove it. When crystals form in a joint, your immune system treats them as a threat and triggers sudden inflammation — that's the gout attack.
The big toe is the most common target, though gout can strike your ankle, knee, wrist, or other joints. The attacks come on suddenly, often at night, with intense pain, redness, and swelling that can last days or weeks if untreated.
Key Takeaways
- Gout develops when uric acid crystals form inside a joint, triggering sudden pain and swelling that typically lasts several days.
- Your big toe is the most common site, but gout can affect your ankle, knee, wrist, or other joints.
- A blood test showing high uric acid levels, plus imaging or joint fluid analysis, helps doctors confirm gout.
- Certain foods, drinks, and medications raise your uric acid, and managing these can reduce how often attacks happen.
- Treatment during an attack focuses on reducing pain and inflammation, while long-term management aims to lower uric acid levels.
Why your foot is the most common place for gout
Your big toe bears weight and experiences temperature changes throughout the day, both of which make it an ideal place for uric acid crystals to form and settle. The joint at the base of your big toe is also naturally cooler than the rest of your body, and uric acid crystals prefer cold environments. This combination of factors — weight-bearing stress, lower temperature, and the joint's structure — explains why gout attacks your foot first in most cases.
Once you've had one gout attack in your foot, that joint is more likely to be targeted again. Over time, repeated attacks can damage the joint and surrounding tissue if uric acid levels stay high.
What happens during a gout attack
A gout attack typically starts without warning, often in the middle of the night. You may wake with intense throbbing pain in your big toe, or feel it building over a few hours. The affected joint becomes red, swollen, and warm to the touch. Even the weight of a bed sheet can feel unbearable. The pain usually peaks within 24 to 48 hours, then gradually improves over several days to a week, even without treatment.
Between attacks, you may feel completely normal with no pain or swelling. This period of calm can last weeks, months, or even years. However, if your uric acid remains high, attacks tend to happen more often and may last longer each time.
How doctors identify gout
Your doctor will start by asking about your symptoms, family history, and what you eat and drink. They'll examine the affected joint for redness, warmth, and swelling. To confirm gout, they typically order a blood test to measure your uric acid level. High uric acid supports the diagnosis, though some people have high levels without ever having an attack.
The most definitive test is joint fluid analysis. Your doctor uses a needle to draw fluid from the swollen joint and examines it under a microscope for uric acid crystals. If crystals are present, the diagnosis is certain. X-rays or ultrasound may also be used to check for joint damage from repeated attacks.
Foods and drinks that raise your uric acid
Certain foods and beverages contain high amounts of purines, which your body converts to uric acid. Red meat, organ meats like liver, and seafood — especially anchovies, sardines, and shellfish — are major sources. Beer is particularly problematic because it both contains purines and interferes with how your kidneys filter uric acid. Sugary drinks and foods with high-fructose corn syrup also raise uric acid levels.
Alcohol other than beer can trigger attacks too, though the risk is lower than with beer. Dehydration makes uric acid more likely to crystallize, so drinking plenty of water helps prevent attacks. You don't need to eliminate these foods entirely, but reducing them — especially during or after an attack — can help manage your condition.
Medications and conditions that increase gout risk
Certain medications raise your uric acid level as a side effect. Diuretics, which doctors prescribe for high blood pressure and heart conditions, are common culprits. Some cancer medications and low-dose aspirin can also trigger gout. If you take any of these and develop gout symptoms, tell your doctor — they may be able to switch you to a different medication.
Conditions like kidney disease, high blood pressure, obesity, and diabetes increase your gout risk because they interfere with how your body processes uric acid. Men are more likely to develop gout than women, and risk rises with age. A family history of gout also makes you more vulnerable.
Treatment during and after an attack
During an acute attack, the goal is to reduce pain and inflammation as quickly as possible. Nonsteroidal anti-inflammatory drugs (NSAIDs) like indomethacin or naproxen work well if taken early. Colchicine, a medication that reduces inflammation specifically, can also be effective. Corticosteroids are an option if NSAIDs or colchicine don't work or you can't take them. Resting the joint, elevating your foot, and applying ice can provide additional relief.
Once the acute attack subsides, your doctor may recommend long-term treatment to lower your uric acid level and prevent future attacks. Medications like allopurinol or febuxostat reduce how much uric acid your body produces. Probenecid helps your kidneys excrete more uric acid. These medications work best when combined with dietary changes and staying well-hydrated. Your doctor will monitor your uric acid level with blood tests to make sure the dose is working.
Frequently Asked Questions
Can gout go away on its own?
A single gout attack will resolve on its own within days to a week, even without treatment. However, if your uric acid level stays high, attacks will return. Long-term management with medication and lifestyle changes is needed to prevent future attacks and protect your joints from damage.
Is gout the same as arthritis?
Gout is a type of arthritis — specifically, inflammatory arthritis caused by crystal formation. Other types of arthritis, like osteoarthritis or rheumatoid arthritis, develop differently. Gout is unique because it's triggered by uric acid crystals and can often be controlled by lowering uric acid levels.
What should I do if I think I have gout?
See your doctor as soon as possible, especially if you have sudden severe pain in a joint. They can examine you, order tests, and confirm whether it's gout or another condition. Early diagnosis and treatment reduce pain and help prevent joint damage from repeated attacks.
Can I prevent gout attacks completely?
You can significantly reduce how often attacks happen by taking uric acid-lowering medication, limiting foods high in purines, avoiding alcohol, staying hydrated, and maintaining a healthy weight. Some people on long-term treatment never have another attack, while others may still experience occasional flare-ups despite good management.
Does gout cause permanent damage?
A single attack causes no lasting damage. However, repeated attacks over years can erode the joint and create permanent changes visible on X-rays. Starting treatment early and keeping your uric acid level low helps prevent this long-term damage.