Gout: Causes, Symptoms, Treatment, and Prevention

By Lana Barhum
Published on August 19, 2022
Medically reviewed by Anita C. Chandrasekaran, MD

Gout is a distinct and often debilitating form of inflammatory arthritis, marked by sudden, intensely painful attacks. These episodes typically manifest as severe pain, noticeable swelling, extreme tenderness, and redness within one or more joints. While gout can affect any joint in the body, it most commonly targets the big toe, making it a familiar, though unwelcome, affliction for many.

The onset of a gout attack can be remarkably abrupt, often striking without warning in the middle of the night. Imagine waking to the sensation that your big toe is ablaze, throbbing with such intensity that even the slightest pressure, like the weight of a bedsheet, becomes unbearable. This acute pain and inflammation are hallmarks of a gout flare-up, disrupting sleep and daily activities alike.

Individuals living with gout frequently experience a cyclical pattern of symptoms, alternating between periods of intense flare-ups, where discomfort is severe, and periods of remission, during which symptoms may be minimal or entirely absent. Managing gout effectively typically involves a dual approach: addressing the acute symptoms during attacks and implementing strategies to prevent future episodes, thereby improving long-term quality of life.

Doucefleur / Getty Images

Gout Causes

The root cause of gout lies in a condition known as hyperuricemia, which signifies an excessive accumulation of uric acid within the body [1]. This overabundance of uric acid can lead to the formation of sharp, needle-like crystals, which then deposit themselves within the joints. It is the presence and accumulation of these urate crystals that directly trigger the painful inflammation characteristic of gout.

Hyperuricemia can arise from one of two primary mechanisms: either the body produces an abnormally large amount of uric acid, or, more commonly, the kidneys are unable to efficiently filter and excrete uric acid from the bloodstream [2]. When uric acid levels reach a critical threshold, these microscopic urate crystals begin to precipitate and build up in the joints, initiating the inflammatory response that defines gout.

It is important to note that having high uric acid levels, or hyperuricemia, does not automatically mean one will develop gout. In fact, a significant portion of individuals with elevated uric acid may never experience a gout attack. According to a 2021 report published in Biomolecules, only up to 36% of those diagnosed with hyperuricemia will ultimately progress to developing gout [3]. This highlights the complex interplay of factors beyond just uric acid levels that contribute to the manifestation of the disease.

Gout Risk Factors

Certain factors can significantly increase an individual's predisposition to developing gout. One notable demographic disparity is gender, with gout being considerably more prevalent in men. A comprehensive 2019 review published in Advances in Rheumatology indicated that women comprise only about 5.1% of gout cases [4]. However, this prevalence shifts after menopause, where hormonal changes can increase a woman's risk, making gout a more common concern in older women.

Obesity is another substantial risk factor, particularly for individuals with a body mass index (BMI) of 30 or higher. Increased body weight is associated with higher uric acid levels and greater incidence of gout, as adipose tissue can contribute to both increased uric acid production and reduced renal excretion. Therefore, maintaining a healthy weight is a crucial aspect of gout prevention and management for many patients.

Metabolic syndrome, a cluster of interrelated conditions, also significantly elevates gout risk. This syndrome encompasses a range of health issues, including high blood pressure, elevated blood sugar levels, excess body fat concentrated around the waist, and abnormal cholesterol or triglyceride levels. Each component of metabolic syndrome independently contributes to an environment conducive to uric acid buildup, collectively increasing the likelihood of developing gout, as well as raising the risk for heart disease, stroke, and type 2 diabetes.

Furthermore, impaired kidney function stands as a critical risk factor, as healthy kidneys are essential for filtering uric acid from the blood. When kidney function declines, uric acid accumulates, directly leading to hyperuricemia and crystal formation. Conditions like congestive heart failure, which can impact kidney perfusion and overall metabolic health, also contribute to an increased risk of gout. Genetic predisposition and a family history of gout also play a significant role, indicating that some individuals are simply more genetically susceptible to the condition.

Lifestyle choices also contribute to gout risk. Heavy alcohol consumption, especially beer, is a well-known trigger, as alcohol can interfere with uric acid excretion and increase its production. Similarly, a diet rich in purine-dense foods can lead to elevated uric acid levels. Lastly, the excessive use of certain diuretics, commonly known as "water pills," can also contribute to hyperuricemia by reducing the kidneys' ability to excrete uric acid, thereby increasing gout risk [1].

What Is Uric Acid?

Uric acid is a natural waste product generated during the body's metabolic breakdown of chemicals called purines [5]. These purines are fundamental components of cells, released into the body when cells are broken down, and are also found in various foods we consume. Normally, uric acid dissolves in the blood, is transported to the kidneys, and then efficiently eliminated from the body through urine, maintaining a healthy balance.

However, a diet particularly rich in purine-containing foods and beverages can significantly increase uric acid levels in the bloodstream, overwhelming the body's natural elimination processes. Common purine-rich culprits include certain types of seafood, such as anchovies and sardines, red meats, and organ meats like liver, which are all known to elevate uric acid concentrations. Additionally, foods and beverages containing high fructose corn syrup and alcoholic drinks, especially beer, are notorious for contributing to higher uric acid levels [1].

When an excess of uric acid accumulates in the body, it leads to the aforementioned condition of hyperuricemia. This sustained elevation can cause urate crystals to form and deposit not only in the joints, where they trigger gout, but also in other areas. Notably, urate crystals can also make their way into the kidneys, leading to the formation of painful kidney stones [5]. Therefore, managing uric acid levels is crucial for preventing both gout attacks and associated renal complications.

What Are Kidney Stones?

Kidney stones are hard deposits of minerals and salts that form inside the kidneys. In the context of gout, high levels of uric acid are a common cause for the formation of uric acid kidney stones. These stones can cause significant discomfort and severe pain as they attempt to pass through the urinary tract, and can sometimes block the passage of urine. While many kidney stones are small enough to pass spontaneously without requiring medical intervention, larger or problematic stones may necessitate medication or surgical procedures for removal.

Gout Symptoms

Gout is characterized by distinct periods of intensified symptoms, commonly referred to as gout attacks or gout flare-ups. These episodes are notorious for their severe pain and rapid onset, often escalating from minor discomfort to excruciating agony within a matter of hours. Understanding the specific manifestations of a gout attack is key to early recognition and management.

Symptoms during a gout attack are typically intense and localized, often including sharp, intense pain that can be triggered by even the slightest touch, such as the brush of bedsheets against the affected joint [6]. The joint will also exhibit pronounced swelling, making it visibly larger and often shiny, alongside significant stiffness that limits movement. A hallmark sign is striking redness around the joint, accompanied by a distinct sensation of warmth or a feeling that the inflamed joint is intensely hot, often described as "on fire."

In some chronic or severe cases of gout, a unique physical manifestation known as tophi may develop. Tophi are noticeable lumps or nodules formed by accumulations of uric acid crystals just beneath the skin and around the affected joints [6]. These deposits indicate prolonged elevated uric acid levels and can contribute to joint damage and deformity over time. They typically appear in areas such as the fingers, elbows, or earlobes, serving as a visible reminder of the underlying crystalline buildup.

While gout can affect any joint in the body, its most frequent target is the big toe, where initial attacks often occur. However, it can also manifest in other joints, including the knees, ankles, feet, hands, wrists, and elbows. A gout attack generally concentrates on one joint at a time, although multiple joints can be affected simultaneously in more severe or chronic cases.

The intensity of a gout attack typically peaks within the first 12 to 24 hours [6]. The earliest indicators of an impending flare might include subtle sensations like itching, a mild burning, or a minor soreness or stiffness in the affected joint, serving as a brief precursor to the full-blown attack. After reaching its peak, the symptoms will gradually subside, and most individuals typically recover from a gout flare within one to two weeks. Following resolution, a period of remission can follow, lasting anywhere from several months to a year or even longer, during which symptoms are absent, offering a welcome respite before the next potential flare.

Diagnosis

Diagnosing gout typically involves a comprehensive evaluation, drawing upon a patient's reported symptoms, their detailed medical history, a thorough physical examination, specific laboratory tests, and in some cases, imaging studies. This multi-faceted approach helps to accurately identify the condition and differentiate it from other forms of arthritis or joint pain.

During the initial consultation, your healthcare provider will meticulously inquire about the precise onset of your symptoms, including how quickly they developed and any recurring patterns you may have noticed. They will also gather information on your family medical history, particularly regarding any incidence of gout or other inflammatory conditions, as genetic predispositions can play a significant role. This detailed history helps to establish a clearer picture of your potential susceptibility to gout.

The physical examination focuses primarily on the affected joint. Your healthcare provider will carefully inspect the area for visible signs of swelling, redness, and tenderness, which are hallmark indicators of a gout attack. Furthermore, they will assess the joint's range of motion, observing how freely and extensively the joint can move, and will also check for the presence of tophi, those telltale lumps formed by uric acid crystal deposits around the joints, which are common in individuals with more advanced or chronic gout.

Blood tests are often conducted to measure the levels of uric acid in your body. While elevated uric acid levels are a strong indicator of gout, it is crucial to remember that high levels alone do not confirm a diagnosis, as some individuals with hyperuricemia never develop gout. Conversely, during an acute gout attack, uric acid levels might even appear normal. Therefore, this test is often used in conjunction with other diagnostic methods to provide a more accurate assessment of your condition.

The most definitive and accurate test for diagnosing gout is a joint aspiration test, also known as synovial fluid analysis [7]. This procedure involves the precise collection of synovial fluid, the lubricating fluid naturally found within joints. To perform this, a healthcare provider carefully inserts a thin needle into the skin near the affected joint and withdraws a small sample of the fluid into a sterile tube. This fluid is then meticulously examined under a microscope, specifically to identify the presence of urate crystals, whose definitive identification confirms a gout diagnosis.

Imaging techniques can also play a supportive role in diagnosing gout and ruling out other potential causes of joint pain. An ultrasound scan, which utilizes sound waves to create detailed images of internal structures, is particularly effective at detecting the characteristic urate crystals within the joints and surrounding soft tissues. In more complex or unclear cases, some medical facilities may employ dual-energy computed tomography (CT) scanning, an advanced imaging method using X-rays and computer processing, to further evaluate for gout if the diagnosis remains uncertain following other tests.

Treatment

The primary goals of gout treatment are two-fold: first, to effectively reduce pain and alleviate symptoms during an acute gout attack, and second, to implement strategies that prevent future gout attacks from occurring. Achieving these goals often involves a combination of medication and lifestyle adjustments, tailored to the individual's specific needs and the severity of their condition.

During a gout attack, medications are prescribed to rapidly bring down inflammation and pain. Nonsteroidal anti-inflammatory drugs (NSAIDs) are a common first-line treatment; these include readily available over-the-counter options like Advil (ibuprofen) or prescription-strength medications such as Indocin (indomethacin), both of which work by reducing swelling and pain. Corticosteroids, powerful anti-inflammatory medications, are also utilized to quickly diminish inflammation during flares and can be administered orally or via injection into the affected joint.

Another crucial medication for acute attacks is Colcrys (colchicine). This drug is particularly effective when taken early in a gout attack, ideally within the first 12 hours of symptom onset, as it works to reduce inflammation and significantly slow down the progression of the attack [8]. Its mechanism of action differs from NSAIDs and corticosteroids, making it a valuable tool in the immediate management of gout flares, helping to prevent the escalation of pain and discomfort.

Beyond managing acute attacks, your healthcare provider may also prescribe long-term medications designed to lower uric acid levels in your body, thereby preventing future gout attacks [9]. Allopurinol, available as a pill under brand names like Zyloprim, is a widely used medication that reduces the production of uric acid. Febuxostat, another pill-form medication marketed as Uloric, serves a similar purpose by inhibiting uric acid production.

Probenecid, found in medications like Benemid and Probalan, is an oral drug that helps the kidneys excrete more uric acid, thus lowering overall levels in the blood. For severe or refractory cases of gout that do not respond to other treatments, Krystexxa (pegloticase) may be considered. This medication is administered as an intravenous infusion and works by converting uric acid into a compound that is more easily excreted by the body, providing a powerful option for patients with chronic and difficult-to-control gout.

Prevention

While pharmaceutical interventions are crucial for managing and preventing gout, dietary and lifestyle modifications play an equally vital role in reducing the frequency and severity of attacks. Incorporating specific nutritional strategies can significantly complement medical treatment, empowering individuals to take an active role in their long-term health and well-being.

A cornerstone of gout prevention involves diligently avoiding or limiting high-purine beverages. This includes alcoholic drinks, particularly beer, which has been shown to raise uric acid levels more effectively than other alcoholic beverages due to its purine content. Similarly, sugary drinks, especially those sweetened with high fructose corn syrup, should be consumed sparingly, as fructose metabolism can contribute to increased uric acid production in the body, exacerbating the risk of a gout flare.

Equally important is minimizing the consumption of foods known to be rich in purines. This category encompasses red meats, which can be significant contributors to uric acid levels, and organ meats like liver, which are exceptionally high in purines. Certain purine-rich seafood, such as anchovies and sardines, should also be limited. By consciously reducing intake of these specific foods, individuals can effectively lower their circulating uric acid levels and mitigate the risk of developing urate crystals that precipitate gout attacks.

Staying adequately hydrated is a simple yet powerful preventive measure. Increasing your daily water intake is beneficial for kidney health, as well as for facilitating the efficient flushing of uric acid from the body. When the kidneys are well-hydrated, they can more effectively filter and excrete uric acid through urine, preventing its accumulation and the subsequent formation of painful crystals in the joints and kidneys.

Adopting a generally healthy and balanced diet is also fundamental for gout prevention. This includes prioritizing a generous intake of fresh vegetables, a wide variety of fruits, whole grains, and legumes such as beans. Furthermore, incorporating low-fat dairy products into your diet may offer a particular advantage; studies suggest that these products can help to decrease uric acid levels in the blood and significantly reduce the risk of future gout attacks, making them a valuable addition to a gout-friendly diet [10].

Beyond general healthy eating, certain specific foods have garnered attention for their potential role in preventing gout flares. Cherries and cherry juice, for instance, are widely believed to possess properties that can help mitigate gout attacks. Research supports this notion; one comprehensive crossover study, utilizing online surveys, found a compelling association between cherry intake over two days and a 35% reduced risk for gout attacks. Moreover, the study indicated that cherry extract could reduce this risk by as much as 45%, highlighting their potential as a natural preventive aid [11].

Finally, achieving and maintaining a healthy weight is a highly effective strategy for preventing gout attacks. Weight loss has been consistently shown to help reduce uric acid levels in the body. Studies indicate that for individuals with gout, losing excess weight can contribute significantly to achieving long-term goals, such as sustained reductions in uric acid levels and a decrease in the frequency of gout episodes [12]. Beyond its direct impact on uric acid, weight loss also benefits overall joint health by reducing mechanical stress, can lead to the regression of tophi, improve physical function and quality of life, and lessen the potential for developing gout-related complications or comorbidities.

Summary

Gout is a distinct form of inflammatory arthritis characterized by sudden, intensely painful attacks involving swelling, tenderness, and redness in one or more joints. Although it can affect any joint, the big toe is the most commonly affected site, often experiencing severe inflammation that can disrupt daily life. The fundamental cause of gout is hyperuricemia, a condition where excessive uric acid accumulates in the body, leading to the formation of sharp urate crystals that deposit in and around the joints, triggering a strong inflammatory response. While many factors can contribute to gout, certain individuals, such as males and those with a family history of the condition, are at a heightened risk.

Fortunately, gout is a treatable and manageable condition, and individuals can significantly improve their quality of life with appropriate interventions. Treatment typically involves a combination of medications designed to alleviate symptoms during acute attacks and drugs aimed at lowering uric acid levels to prevent future episodes. Beyond pharmacological approaches, lifestyle modifications play a crucial role in prevention. Adopting a healthy diet, diligently avoiding foods and beverages known to increase uric acid, maintaining adequate hydration, and achieving a healthy weight are all effective strategies to minimize the frequency and severity of gout attacks.

A Word From Verywell

Gout, while a lifelong condition, can be effectively managed to ensure a good quality of life, especially when diagnosed early and addressed with a proper treatment plan. Left untreated, however, gout can lead to chronic issues, including significant joint damage, irreversible bone erosion, and persistent pain that can severely impair mobility and daily function. The repeated deposition of urate crystals can eventually deform joints and lead to chronic arthritis, necessitating more intensive medical intervention.

Moreover, some individuals with untreated or poorly managed gout may develop tophi, which are substantial accumulations of uric acid crystals in the joints and soft tissues, often visible as hard lumps beneath the skin. These tophi can cause disfigurement, functional limitations, and can even become infected. Beyond joint complications, high uric acid levels associated with gout can lead to other serious health problems, including the formation of painful kidney stones or the progression to severe kidney disease. It is therefore paramount to communicate all symptoms you experience to your healthcare provider, whether directly related to gout or indicative of another underlying health condition, to ensure comprehensive and timely care.

Frequently Asked Questions

• What foods help lower uric acid?
  Several foods can contribute to lowering uric acid levels and reducing the risk of gout flares. Incorporating low-fat dairy products, for instance, has been shown to reduce uric acid in the blood and decrease the likelihood of future attacks. Additionally, cherries, both in their whole fruit form and as cherry juice, are widely believed to help prevent gout attacks due to their anti-inflammatory and uric acid-reducing properties. Prioritizing a balanced diet rich in vegetables, fruits, and whole grains while limiting purine-rich foods is also key. Learn More: How Food Can Help Treat Gout

• What are the warning signs of gout?
  The onset of a gout flare can sometimes be heralded by subtle warning signs, though not everyone experiences them. You might notice a burning sensation, itching, or tingling in the affected joint, or perhaps a minor stiffness or soreness, an hour or two before the full-blown attack intensifies. However, it is also common for individuals to experience no discernible early signs at all, and instead wake up abruptly in the middle of the night with a severely inflamed and exquisitely painful joint, indicative of an acute gout attack. Learn More: Symptoms of Gout

• Can gout be cured?
  Currently, there is no definitive cure for gout, meaning the condition is considered a lifelong one. However, gout is highly treatable and can be very effectively managed. The primary aim of treatment is to alleviate symptoms during acute gout attacks and, more importantly, to prevent future episodes from occurring. Healthcare providers will often prescribe medications specifically designed to lower uric acid levels in the body, which can significantly reduce the frequency and severity of flares and help prevent long-term joint damage. With proper management, individuals with gout can lead full and active lives. Learn More: Treating Gout

Read more:

• Health A-Z
• Arthritis
• Gout

12 Sources

Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.

1. Centers for Disease Control and Prevention. Gout.
2. National Kidney Foundation. Gout and kidney disease.
3. Zhang WZ. Why does hyperuricemia not necessarily induce gout?. Biomolecules. 2021;11(2):280. doi:10.3390/biom11020280
4. Evans PL, Prior JA, Belcher J, Hay CA, Mallen CD, Roddy E. Gender-specific risk factors for gout: a systematic review of cohort studies. Adv Rheumatol. 2019;59(1):24. doi:10.1186/s42358-019-0067-7
5. Johns Hopkins Medicine. Kidney stones.
6. Johns Hopkins Arthritis Center. Symptoms and diagnosis of gout.
7. Qaseem A, McLean RM, Starkey M, et al. Diagnosis of acute gout: a clinical practice guideline from the American College of Physicians. Ann Intern Med. 2017;166(1):52-57. doi:10.7326/M16-0569
8. Slobodnick A, Shah B, Krasnokutsky S, Pillinger MH. Update on colchicine, 2017. Rheumatology (Oxford). 2018;57(suppl_1):i4-i11. doi:10.1093/rheumatology/kex453
9. Johns Hopkins Arthritis Center. Treatment of gout.
10. Major TJ, Topless RK, Dalbeth N, Merriman TR. Evaluation of the diet wide contribution to serum urate levels: meta-analysis of population based cohorts. BMJ 2018;363:k3951. doi:10.1136/bmj.k3951
11. Collins MW, Saag KG, Singh JA. Is there a role for cherries in the management of gout? Ther Adv Musculoskelet Dis. 2019;11:1759720X19847018. doi:10.1177/1759720X19847018
12. Nielsen SM, Bartels EM, Henriksen M, et al. Weight loss for overweight and obese individuals with gout: a systematic review of longitudinal studies. Ann Rheum Dis. 2017;76(11):1870-1882. doi:10.1136/annrheumdis-2017-211472

By Lana Barhum Barhum is a medical writer with 15 years of experience with a focus on living and coping with chronic diseases.