Gout can affect far more than just the big toe. While that joint is the single most common site, accounting for about 50% of first flares, uric acid crystals can deposit in joints throughout the body, in tendons and other soft tissues, and even in the kidneys. Understanding where gout strikes helps you recognize flares early and take symptoms seriously no matter where they show up.
Why Gout Targets Certain Joints
Gout happens when uric acid in the blood crystallizes and settles into joints and surrounding tissues. These crystals don’t form randomly. They’re more likely to develop in cooler parts of the body, and even a 2°C drop in tissue temperature is enough to significantly lower the point at which uric acid stays dissolved. The big toe joint sits far from the body’s core, has relatively low blood flow (meaning less heat delivery), and has a high surface area that radiates warmth easily. That combination makes it the prime target for a first attack.
The same logic applies to other joints in the feet, ankles, and hands. Peripheral joints are cooler and more exposed, which is why gout overwhelmingly favors the extremities over central joints like the hips or shoulders. Gravity also plays a role: fluid pools in the lower limbs, concentrating uric acid in those tissues.
The Big Toe and Foot
The base of the big toe is so closely associated with gout that the condition even has its own name when it strikes there: podagra. Half of all people experiencing their first gout flare feel it in this joint. The midfoot, the arch area where several small bones connect, is another frequent site. Pain in these areas tends to come on suddenly, often in the middle of the night, with the joint turning red, swollen, and intensely tender within hours.
Ankles and Knees
After the foot, the ankles and knees are among the most commonly affected joints. In the official classification criteria used by rheumatologists, ankle and midfoot involvement during a flare is specifically scored as a diagnostic indicator of gout. Knee gout can be particularly disruptive because the swelling and stiffness make walking difficult. In some cases, uric acid deposits inside the knee can cause locking sensations or limited bending, symptoms that are sometimes mistaken for a torn meniscus or loose cartilage.
Hands, Wrists, and Elbows
Gout doesn’t stay in the lower body forever. Over time, attacks tend to climb upward in an asymmetrical pattern, eventually involving upper extremity joints while continuing to flare in the legs and feet. The wrists, finger joints, and elbows are all common upper body targets.
Imaging studies of people with gout in the hands and wrists show that crystal deposits are widespread once they take hold. In one study using advanced CT scanning, more than half of patients had deposits in the wrist joint itself, and over 40% had crystals in the knuckle joints. The tendons running through the wrist were also heavily involved, with deposits found in the flexor tendons of 65% of patients scanned. When crystals build up around the tendons that pass through the carpal tunnel, they can compress the nerve and cause numbness and tingling in the fingers, mimicking classic carpal tunnel syndrome.
The elbow is another notable site, particularly the bursa, a small fluid-filled sac at the tip of the elbow. This area is prone to developing visible lumps of uric acid deposits called tophi.
Tendons and Soft Tissues
Gout isn’t strictly a joint disease. Uric acid crystals readily deposit in tendons, ligaments, and bursae throughout the body. The Achilles tendon along the back of the ankle is one of the most recognizable soft tissue sites, where lumps can form just above the heel. The patellar tendon below the kneecap, the shin tendons, and various tendons in the foot are also affected. In some cases, deposits infiltrate deeper structures like the cruciate ligaments inside the knee.
These soft tissue deposits can cause symptoms that don’t look like typical gout at all. A tophus on an extensor tendon in the hand might look like a tumor. Deposits in the patellar tendon can extend into the surrounding fat pad. Because these presentations are unusual, they’re sometimes misdiagnosed for months or years before the underlying gout is identified.
Tophi: Visible Deposits Under the Skin
When gout goes untreated for years, uric acid crystals can accumulate into firm, chalky nodules called tophi that form under the skin. Common locations include the fingers, hands, feet, elbows, and along the Achilles tendon. Tophi are usually painless between flares, but they can become swollen and tender during active attacks. Over time, they grow large enough to be visible and can press on nearby structures.
The real concern with tophi is bone damage. On X-rays, chronic tophaceous gout produces a distinctive pattern of “punched-out” bone erosions with overhanging edges, a feature that distinguishes it from rheumatoid arthritis. These erosions can appear in the hands, feet, and occasionally larger joints like the shoulder. Once bone is damaged, the changes are permanent, which is why preventing tophi from forming in the first place is a key goal of long-term gout management.
Kidney Involvement
The kidneys are responsible for clearing most of the body’s uric acid, which makes them particularly vulnerable when levels stay elevated. Uric acid crystals can deposit directly in the kidney tissue, specifically in the inner portion called the medulla, triggering inflammation and scarring. High uric acid also appears to damage the kidneys indirectly by stiffening small blood vessels, activating hormonal systems that raise blood pressure, and generating oxidative stress that impairs blood flow.
The relationship between gout and kidney disease runs in both directions. As kidney function declines, the body clears less uric acid, pushing blood levels higher and making gout worse. Studies have found that over 70% of people with gout have at least mild kidney disease, and roughly 24% have moderate to severe impairment. Whether lowering uric acid with medication can slow kidney decline remains an open question. Some smaller trials have shown a benefit, but larger, more rigorous studies have found no significant difference in kidney function between treated and untreated groups over two to three years.
Rare and Unusual Locations
While gout overwhelmingly favors the extremities, crystals can occasionally show up in unexpected places. The outer ear (the helix) is a classic but uncommon site for tophi. The spine can also be affected, though this is rare and often discovered incidentally on imaging. There are even documented cases of deposits in the scrotum. These atypical presentations can be confusing for both patients and doctors, since gout may not be the first diagnosis considered when symptoms appear far from the usual joints.
How Gout Spreads Over Time
Early gout typically affects a single joint at a time, most often in the lower body. Flares come on fast, peak within 12 to 24 hours, and resolve on their own within days to a couple of weeks. The heat generated by the inflammatory response actually helps dissolve the crystals, which is one reason attacks are self-limiting.
Without treatment, the pattern changes. Flares become more frequent, last longer, and start to involve multiple joints simultaneously. The progression tends to follow an ascending but asymmetrical path: lower extremity joints continue to flare while upper extremity sites like the wrists, fingers, and elbows get added to the mix. The onset also shifts from sudden and explosive to a more smoldering, gradual buildup. Eventually, some people experience near-constant low-grade joint inflammation rather than distinct attacks, a stage known as chronic tophaceous gout. At this point, the disease has typically been active for years and may involve widespread joint damage, visible tophi, and kidney complications.