Gout is a form of inflammatory arthritis caused by a buildup of uric acid crystals in your joints. It produces sudden, intense episodes of pain, swelling, and redness, most famously in the big toe. These episodes, called flares or attacks, can wake you from sleep and make the affected joint so sensitive that even the weight of a bedsheet feels unbearable.
How Gout Develops
Your body produces uric acid as it breaks down purines, substances found naturally in your body and in certain foods. Normally, uric acid dissolves in your blood, passes through your kidneys, and leaves your body in urine. But when your body makes too much uric acid or your kidneys don’t filter enough of it out, uric acid accumulates in your blood.
When blood uric acid levels rise above 6.8 mg/dL, the uric acid can form sharp, needle-shaped crystals that deposit in and around joints. These crystals trigger an intense inflammatory response. Your immune system treats them like a foreign invader, flooding the area with white blood cells and inflammatory chemicals. That’s what produces the dramatic swelling, heat, and pain of a gout attack. Elevated uric acid alone isn’t enough to cause gout. Many people have high levels for years without symptoms. The disease requires both crystal formation in the tissues and an inflammatory reaction to those crystals.
What a Gout Attack Feels Like
A gout flare typically strikes fast, often starting in the middle of the night. The joint becomes hot, swollen, and deeply painful within hours. Pain usually peaks 12 to 24 hours after it begins. Without treatment, the flare gradually eases over 7 to 14 days, though some attacks resolve faster.
The big toe is the classic location, but gout can also affect the ankles, knees, wrists, fingers, and elbows. Early in the disease, attacks tend to involve a single joint. Over time, flares may affect multiple joints at once and occur more frequently. Between attacks, you may feel completely fine, which is one reason people sometimes delay seeking treatment.
During a flare, the skin over the joint often turns red or purplish and may peel as the swelling goes down. The joint can be so tender that any contact, even light pressure from clothing or bedsheets, causes sharp pain.
Symptoms of Advanced Gout
If uric acid levels stay elevated over years, crystals can accumulate into visible lumps under the skin called tophi. These firm, rounded nodules range from pea-sized to as large as a tangerine. They commonly form on the fingers, hands, feet, elbows, and Achilles tendons. In less typical cases, they can appear on the ears, nose, or even the whites of the eyes.
Tophi aren’t usually painful on their own, but they become swollen and tender during flares. Sometimes a chalky white discharge of uric acid works its way to the skin’s surface. The real danger of tophi is structural damage. A tophus can erode cartilage and bone, weaken tendons and ligaments, and physically block a joint from moving properly. In rare cases, tophi compress nerves or interfere with organ function. This damage is often permanent, which is why preventing gout from reaching this stage matters so much.
Who Gets Gout and Why
Several factors raise your risk. Being overweight increases uric acid production and makes it harder for your kidneys to clear it. Diet plays a significant role: organ meats like liver and kidney, red meat, and certain seafood (anchovies, sardines, shellfish, and cod) are all high in purines and can push uric acid levels up. Beer and distilled spirits are strongly linked to both developing gout and triggering repeat attacks. Foods and drinks sweetened with high-fructose corn syrup, including some cereals, baked goods, and canned soups, also increase risk.
Men are more likely to develop gout than women, partly because women have lower uric acid levels until menopause. Family history matters too, as genetics influence how efficiently your kidneys excrete uric acid. Certain medications, particularly diuretics (water pills), can also raise uric acid levels.
Gout vs. Pseudogout
A condition called pseudogout can mimic gout closely. Both cause sudden joint pain, swelling, and redness. The key difference is the type of crystal involved. Gout is caused by uric acid crystals, while pseudogout involves calcium pyrophosphate crystals. Pseudogout tends to affect larger joints like the knee and wrist more often than the big toe. It’s more closely tied to aging and metabolic conditions like overactive parathyroid glands or iron overload, rather than diet.
The only way to definitively tell them apart is by examining joint fluid under a microscope, where the crystal shapes and light properties look distinctly different. This distinction matters because while acute treatment is similar for both, gout has specific long-term therapies that target uric acid levels. Pseudogout has no equivalent treatment for its underlying crystal deposits.
How Gout Is Managed
Treatment has two separate goals: stopping the pain of an active flare and lowering uric acid levels to prevent future attacks. For acute flares, anti-inflammatory medications taken early can shorten the attack significantly and reduce pain. The sooner you start treatment after symptoms appear, the more effective it tends to be.
Long-term management focuses on getting your blood uric acid below 6 mg/dL, the level at which existing crystals begin to dissolve. For some people with tophi or frequent flares, doctors aim for below 5 mg/dL. This typically involves daily medication that either reduces uric acid production or helps your kidneys excrete more of it. Dietary changes alone rarely bring levels low enough, but they can complement medication and reduce flare frequency.
Reaching target uric acid levels doesn’t produce instant results. It can take months to years for crystal deposits to fully dissolve, and flares may actually increase temporarily in the early months of treatment as crystals break up. Sticking with the plan through this phase is important, because once the crystals are gone, flares stop.