Gout is a type of arthritis. Specifically, it’s an inflammatory arthritis caused by the buildup of uric acid crystals inside a joint. The CDC classifies it as a common and painful form of arthritis that usually strikes one joint at a time, most often the base of the big toe. Unlike the slow cartilage breakdown of osteoarthritis or the immune system misfires of rheumatoid arthritis, gout has a distinct trigger: too much uric acid in the blood.
What Makes Gout Different From Other Arthritis
All forms of arthritis involve joint inflammation, but gout stands apart in how it starts and how it behaves. Your body naturally produces uric acid as it breaks down certain substances in food and in your own cells. Normally, uric acid dissolves in the blood, passes through the kidneys, and leaves the body in urine. When levels climb too high, needle-shaped crystals can form and settle into joint tissue.
Those crystals act like a danger signal. The immune system responds aggressively, flooding the area with inflammatory molecules that cause intense pain, redness, swelling, and heat. This cascade happens fast, which is why a gout flare can go from nothing to excruciating in a matter of hours, peaking within 12 to 24 hours of onset. That sudden, explosive quality is one of the clearest ways gout differs from rheumatoid arthritis, which tends to develop gradually and affect joints symmetrically on both sides of the body.
Rheumatoid arthritis also favors small joints like knuckles and wrists, typically on both hands at once. Gout more often hits a single large joint, especially the big toe, though it can also affect the ankles, knees, elbows, wrists, and fingers. Osteoarthritis, the most common form of arthritis, results from years of mechanical wear on cartilage and causes a dull, aching pain that worsens with use. Gout pain is sharper, more sudden, and often described as the worst joint pain a person has ever felt.
Who Gets Gout and Why
Genetics play a far larger role than most people realize. A large analysis published in the BMJ found that genetic factors explained roughly 24% of the variation in blood uric acid levels, while even the foods most strongly linked to gout accounted for less than 1% individually. Summed together, 14 diet-related factors explained only about 3% of the variation. In women, genetics accounted for over 40% of the variation. This doesn’t mean diet is irrelevant, but it does mean that gout is primarily a metabolic condition with a strong hereditary component, not simply the result of eating too much red meat or drinking too much beer.
That said, several factors raise risk beyond genetics. Being male, being overweight, having high blood pressure or kidney disease, and taking certain medications (particularly diuretics) all increase the likelihood of developing gout. Uric acid levels above 6.8 mg/dL are considered elevated, and the higher above that threshold you stay, the more likely crystals are to form.
What a Gout Flare Feels Like
A flare typically begins at night. The affected joint, often the big toe, becomes swollen, red, warm, and extremely tender. Many people say even the weight of a bedsheet on the joint is unbearable. Without treatment, a flare reaches its worst point within the first day and then gradually subsides over 7 to 14 days. With treatment, that window can shorten considerably.
Between flares, you may feel completely normal. Early in the disease, flares can be separated by months or even years. But without management, they tend to become more frequent, last longer, and involve more joints. Over time, uric acid crystals can accumulate into visible lumps called tophi, which form under the skin near joints, along tendons, or even on the ears. Tophi can damage bone and cartilage permanently if uric acid levels aren’t brought under control.
How Gout Is Diagnosed
The most definitive way to confirm gout is to draw fluid from the affected joint and look for uric acid crystals under a microscope. A blood test showing elevated uric acid supports the diagnosis but isn’t enough on its own, since some people have high uric acid without ever developing gout, and uric acid levels can actually drop during an acute flare.
Distinguishing gout from rheumatoid arthritis is usually straightforward in acute cases because the pattern is so different: sudden onset in one joint versus gradual, symmetrical involvement. But chronic gout that affects multiple joints can look surprisingly similar to rheumatoid arthritis, making crystal detection especially important for an accurate diagnosis. Imaging like ultrasound can also help, revealing a characteristic “double contour sign” on the surface of cartilage where crystals have deposited.
Managing Flares
Acute flares are treated with anti-inflammatory medications. Nonsteroidal anti-inflammatory drugs (NSAIDs), low-dose colchicine, and corticosteroids are all similarly effective at reducing pain and swelling during an attack. The key is starting treatment as early as possible once symptoms begin. Most people notice significant improvement within a few days.
Ice, elevation, and rest can help alongside medication. Staying hydrated and avoiding alcohol during a flare are practical steps that support recovery.
Long-Term Treatment
Because gout is driven by chronically elevated uric acid, managing it long-term means lowering uric acid below the level where crystals can form. The therapeutic target is below 6 mg/dL. The most commonly prescribed medication for this works by blocking the enzyme that produces uric acid in the first place. It’s typically started at a low dose and gradually increased every few weeks until uric acid levels reach the target.
One important detail that surprises many people: starting uric acid-lowering therapy can actually trigger flares in the short term. As uric acid levels drop, existing crystal deposits begin to dissolve, and that process can temporarily provoke inflammation. To prevent this, doctors often prescribe an anti-inflammatory medication alongside the uric acid-lowering drug for the first three to six months.
For people with severe gout who have visible tophi or frequent flares despite standard treatment, additional options exist, including an intravenous medication that directly breaks down uric acid. But most people achieve good control with oral medication and periodic blood tests to monitor their levels.
The Role of Diet and Lifestyle
While genetics drive gout risk more than diet does, lifestyle changes still matter, especially as part of a broader treatment plan. Limiting alcohol (particularly beer), sugary drinks, and organ meats can modestly lower uric acid. Losing weight, if you carry extra, reduces uric acid levels and decreases stress on affected joints. Staying well-hydrated helps the kidneys clear uric acid more efficiently.
These changes alone are rarely enough to bring uric acid below the crystal-forming threshold in someone who already has gout. But combined with medication, they can help keep levels consistently low and reduce the frequency of flares. Thinking of gout as a chronic condition to manage, rather than something caused by a single bad meal, leads to much better outcomes over time.