gout

March 10, 2023

Gout: Everything You Need to Know

Medically Reviewed By Margaret R. Li, MD, FACR
— Written By Healthgrades Editorial Staff and Amy McLean
Updated on March 10, 2023

Gout is a form of inflammatory arthritis characterized by the accumulation of excess uric acid in the body, which then deposits as urate crystals within the joints. This condition commonly affects a single joint at a time, most often appearing in the feet, particularly the big toe. Gout can be profoundly painful, impacting approximately 8.3 million adults in the United States. Its prevalence is notably higher among males, affecting around 6.1 million compared to 2.2 million females.

While painful episodes of gout can often be managed by avoiding specific foods known to trigger the condition, diagnosing gout can be challenging due to symptom overlap with other forms of arthritis. Understanding the nuances of this condition is crucial for effective management. This comprehensive guide provides detailed information on recognizing gout symptoms, exploring available treatments, and determining when professional medical consultation is necessary.

Key facts about gout

Gout is a type of inflammatory arthritis characterized by a buildup of urate crystals in the joints.
Gout is caused by high levels of uric acid in the body. This can occur due to eating too much food that is high in purines, such as meat, or kidney dysfunction.
Symptoms of gout include swelling, pain, and heat around the affected joint.
Medication and dietary changes can help manage symptoms of gout.

What is gout?

A man is touching his ankle.
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Gout is a prevalent form of arthritis resulting from an excessive buildup of uric acid crystals within the joints. Uric acid is a natural substance present in the blood, produced when the body breaks down organic compounds called purines. When the body either generates too much uric acid or when the kidneys fail to adequately excrete it, these excess levels can lead to the formation of crystalline deposits in the joints, initiating a gout attack.

Statistics show that approximately 90% of individuals living with gout have kidneys that do not efficiently remove uric acid from the body. Conversely, about 10% of those who experience gout produce an excessive amount of uric acid. While gout typically manifests in one joint at a time, often initially affecting the big toe, it can also impact other areas. These include the feet, ankles, knees, wrists, elbows, and fingers, causing significant discomfort and inflammation in the affected areas.

Gout vs. pseudogout

Despite its name, pseudogout is distinct from gout, although it presents with strikingly similar symptoms. Both conditions cause intense pain and swelling in a joint due to crystal accumulation. However, their underlying causes differ fundamentally. Gout arises from an excess of uric acid, whereas pseudogout, medically known as calcium pyrophosphate deposition disease, results from the presence of calcium pyrophosphate dihydrate crystals. This crucial distinction influences management strategies.

Unlike gout, where dietary modifications play a significant role in managing symptoms, diet is not as directly linked to pseudogout. Nonetheless, treatment approaches for pseudogout often mirror those for gout. These typically include the use of over-the-counter pain relievers, resting the inflamed joint, and implementing lifestyle adjustments to mitigate risk factors associated with pseudogout flares.

What are the symptoms of gout?

Gout typically manifests in acute stages known as attacks or flares. These flares can endure from several days to several weeks, followed by periods of remission during which individuals may experience no symptoms for weeks, months, or even years. The unpredictable nature of these attacks underscores the importance of understanding their signs.

Common symptoms associated with a gout flare include noticeable joint swelling, intense pain, and a sensation of heat around the affected joint. The first gout flare will usually [ Trusted Source ] Centers for Disease Control and Prevention (CDC) Governmental authority [Go to source] [ Trusted Source ] National Institute of Arthritis and Musculoskeletal and Skin Diseases Governmental authority [Go to source] impact the big toe, but symptoms can also appear in other joints. These attacks frequently begin abruptly at night, with pain often severe enough to disrupt sleep.

How is gout treated?

While gout is a chronic condition for which there is currently no cure [ Trusted Source ] Centers for Disease Control and Prevention (CDC) Governmental authority [Go to source] , it is highly manageable through a combination of medication and self-care strategies. The primary objectives of gout treatment are twofold: to alleviate the pain and inflammation associated with current flares and to reduce both the severity and frequency of future attacks. Effective management helps improve quality of life and prevent long-term complications.

Anti-inflammatory medications

Acute gout flares are commonly treated with anti-inflammatory medications. These include nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen, and colchicine. Colchicine is particularly effective at the beginning [ Trusted Source ] National Institute of Arthritis and Musculoskeletal and Skin Diseases Governmental authority [Go to source] of a flare, helping to reduce inflammation and pain quickly. These medications work by targeting the inflammatory pathways that contribute to the intense discomfort experienced during an attack, providing much-needed relief for individuals.

Corticosteroids

For more severe inflammation or when NSAIDs are not suitable, doctors may prescribe corticosteroids. These powerful medications are effective in decreasing inflammation, relieving pain, and slowing down potential damage to the joints caused by gout. Corticosteroids can be administered orally or directly injected into the site of inflammation, offering targeted relief and helping to bring acute flares under control more rapidly.

Hyperuricemia management

Since elevated uric acid levels are the primary cause of gout, managing hyperuricemia is a cornerstone of long-term treatment. Doctors may prescribe specific medications designed to lower uric acid levels in the blood. These include xanthine oxidase inhibitors, which prevent the body from producing urate, and uricosuric agents, which assist the kidneys in flushing out excess urate. In some cases, uricase may be used to break down urate for easier removal from the body, collectively working to prevent future crystal formation and subsequent gout attacks.

Other tips

Beyond medication, adopting self-care practices can significantly help alleviate symptoms during a gout flare and contribute to overall management. These strategies can include: maintaining good hydration by drinking plenty of water, which aids in flushing out uric acid; applying a cool compress to the affected joint to reduce swelling and inflammation; using assistive devices like a cane to relieve pressure on inflamed joints; elevating a swollen foot or toe above chest level when possible; and modifying socks by cutting out the big toe section to reduce direct pressure on the joint. These practical tips can provide considerable comfort during a flare.

What type of diet can help with gout?

A healthy, balanced diet plays a crucial role in managing many chronic conditions, and gout is no exception. By making mindful food choices, individuals can address some of the underlying risk factors for gout, minimize the frequency and intensity of gout flares, and potentially slow the progression of joint damage. Nutritional adjustments are often a key component of a comprehensive gout management plan, complementing medical treatments effectively.

DASH diet

The Dietary Approaches to Stop Hypertension (DASH) diet has shown promise in managing gout, with studies suggesting it may reduce [ Trusted Source ] PubMed Central Highly respected database from the National Institutes of Health [Go to source] the risk of this condition. Your healthcare provider can assist in tailoring a DASH eating plan specifically for your needs. This diet typically emphasizes consuming a variety of healthy foods, including abundant vegetables, fruits, and whole grains.

The DASH diet also incorporates low-fat or fat-free dairy products, lean protein sources such as fish and poultry, and beneficial plant-based options like beans, nuts, and seeds. Healthy fats from vegetable oils are also part of this plan. Conversely, the DASH diet advises against fatty meats, full-fat dairy, sugar-sweetened beverages, foods high in sodium, and items prepared with tropical oils like coconut and palm oil. Adhering to these guidelines not only aids in gout management but also offers broader health benefits, including a reduced risk of coronary heart disease, stroke, and kidney stones.

Other diet tips

In addition to considering the DASH diet, several other dietary adjustments can contribute to a balanced eating plan and help reduce the risk of gout flares. These include [ Trusted Source ] National Institute of Arthritis and Musculoskeletal and Skin Diseases Governmental authority [Go to source] avoiding alcohol and steering clear of sodas and other beverages containing high fructose corn syrup, as these can elevate uric acid levels. It is also advisable to reduce intake of animal protein, opting for plant-based alternatives when possible. Specifically, highly purine-rich red meats and organ meats such as liver, kidney, tongue, and sweetbreads should be avoided. Similarly, certain seafood and shellfish, including shrimp, lobster, sardines, and anchovies, are high in purines and should be limited. Always consult your doctor before implementing any significant changes to your diet to ensure they align with your overall health needs.

What causes gout?

Gout is fundamentally caused by hyperuricemia, a condition characterized by abnormally high levels of uric acid in the blood. Uric acid is produced through the breakdown of purines, which are natural compounds found in the body and in certain foods. Hyperuricemia occurs either when the body overproduces uric acid or when the kidneys are unable to efficiently excrete it through urination.

When excess uric acid accumulates, it can crystallize and deposit in and around the joints, leading to the characteristic symptoms of gout. These symptoms include intense inflammation, pain, flushing, stiffness, and heat in the affected areas. It is important to note that while hyperuricemia is the direct cause of gout, having elevated uric acid levels does not automatically mean an individual will have gout [ Trusted Source ] PubMed Central Highly respected database from the National Institutes of Health [Go to source] . The precise cause of hyperuricemia is not always clear, with many possible factors [ Trusted Source ] PubMed Central Highly respected database from the National Institutes of Health [Go to source] contributing to its development.

How do doctors diagnose gout?

Obtaining an accurate diagnosis is a critical step in effectively treating gout, particularly because its symptoms can closely resemble those of other types of arthritis. Your primary care physician will likely refer you to a rheumatologist, a medical specialist focused on various forms of arthritis and musculoskeletal conditions, to confirm a gout diagnosis and outline appropriate treatment strategies.

To facilitate a diagnosis, your doctor will inquire about your symptoms in detail. They may ask about the duration of your symptoms, which specific joints are affected, the severity and duration of the pain, any other concurrent symptoms, the timing of symptom onset, your typical dietary habits, and if there is a family history of gout. For a definitive diagnosis, medical professionals typically test the affected joint during a gout flare [ Trusted Source ] Centers for Disease Control and Prevention (CDC) Governmental authority [Go to source] . The definitive presence of uric acid crystals within the joint fluid confirms the diagnosis of gout.

Doctors utilize several tests to diagnose gout include [ Trusted Source ] National Institute of Arthritis and Musculoskeletal and Skin Diseases Governmental authority [Go to source] : a joint fluid test involves drawing a fluid sample from the affected joint with a needle, which is then examined under a microscope for uric acid crystals. The presence of these crystals directly confirms gout. Crystals can also form under the skin in deposits called tophi, signaling advanced gout. A blood test measures uric acid levels, though high levels alone do not always indicate gout. X-rays are used to assess joint damage and rule out other causes of joint symptoms, while imaging scans, including ultrasound and dual-energy CT scans [ Trusted Source ] PubMed Central Highly respected database from the National Institutes of Health [Go to source] , are employed to detect and visualize urate crystals within or around the joints.

What are the risk factors for gout?

Several factors can increase an individual's susceptibility to developing gout. Males are more likely [ Trusted Source ] National Institute of Arthritis and Musculoskeletal and Skin Diseases Governmental authority [Go to source] to develop the condition than females, with onset typically occurring in middle age. Genetic predisposition also plays a role, as a family history of gout can increase one's risk.

Dietary habits significantly influence gout risk. Consuming a diet rich in purines, found in certain meats and seafood, can elevate uric acid levels. Similarly, ingesting beverages containing high fructose corn syrup and excessive alcohol consumption are also known contributors to increased risk. These factors directly impact the body's uric acid balance, making individuals more prone to crystal formation and gout attacks.

Certain medical conditions also heighten the risk of developing gout. These include obesity and metabolic syndrome, which encompasses conditions like high blood sugar, high blood pressure, abnormal cholesterol levels, and excess body fat around the waist. Additionally, chronic kidney disease, psoriasis, hemolytic anemia, Kelley-Seegmiller syndrome, and Lesch-Nyhan syndrome are all associated with an increased likelihood of gout development due to their impact on uric acid metabolism or excretion.

Furthermore, specific medications can contribute to a higher risk of gout. These include diuretics, low-dose aspirin, niacin, and cyclosporine. It is crucial to inform your doctor about all medications you are currently taking, as some may inadvertently contribute to the development or exacerbation of gout. This transparency allows your healthcare provider to adjust your treatment plan or consider alternative medications to mitigate this risk.

Are there any complications of gout?

If left unmanaged, gout can lead to several serious complications that significantly impact joint health and overall well-being. The primary complications associated with persistent, untreated gout include the development of tophi, permanent damage to the affected joints, and the formation of kidney stones. Early intervention and consistent management are essential to prevent these adverse outcomes and preserve long-term health.

Tophi

Tophi are deposits of uric acid crystals that build up under the skin, often appearing as small, white or yellow lumps. While they are typically painless, they can form anywhere on the body, most commonly affecting the knees, toes, heels, fingers, ears, elbows, and forearms. Tophi usually do not develop until several years after the initial gout flare and are generally indicative of severe, long-standing gout. Their presence signifies a chronic and advanced stage of the disease, requiring careful medical attention.

Joint damage

Untreated gout can become more frequent and prolonged, increasing the risk of sustaining permanent damage to the joints. Each flare-up contributes to progressive joint erosion and deformity, which can lead to chronic pain and significant disability. This cumulative damage underscores the importance of prompt medical attention. Individuals experiencing gout symptoms should contact their doctor as soon as possible, as initiating treatment early can help reduce the risk of needing surgical interventions to repair or replace severely damaged joints, preserving joint function and mobility.

Kidney stones

High levels of uric acid, the underlying cause of gout, can also lead to the formation of kidney stones and contribute to a decline in kidney function. Uric acid stones may remain within the kidney or pass into the ureter through the urinary tract, causing excruciating pain, potential infections, and difficulties with urination. A recent analysis of kidney stones found that approximately 5.3% [ Trusted Source ] International Journal of Obesity Peer reviewed journal [Go to source] of cases were uric acid stones, although calcium oxalate remains the most common component, accounting for 77.5%. For uric acid kidney stones, doctors may prescribe medications to reduce blood acidity and make urine less acidic. Larger stones may necessitate surgical removal to alleviate symptoms and prevent further complications.

Can I prevent gout?

There are proactive steps individuals can take to help prevent gout flares or reduce their severity. These preventative measures primarily focus on lifestyle and dietary adjustments, aiming to lower urate levels in the body. A balanced diet is fundamental, one that includes [ Trusted Source ] National Institute of Arthritis and Musculoskeletal and Skin Diseases Governmental authority [Go to source] plenty of vegetables, fruits, whole grains, and low-fat or fat-free dairy products, alongside lean protein sources like poultry. Avoiding foods high in saturated fat and limiting beverages sweetened with sugar are also crucial.

Regular exercise and maintaining a moderate body weight are also important components of a gout prevention strategy. Additionally, drinking plenty of water throughout the day helps the kidneys flush out excess uric acid, further reducing the risk of crystal formation. While anecdotal reports often suggest cherry juice for preventing or mitigating gout flares, research published in Rheumatology indicates that tart cherry concentrate does not reduce [ Trusted Source ] American Journal of Clinical Nutrition Peer reviewed journal [Go to source] serum urate levels in individuals with gout, suggesting more research is needed to substantiate these claims.

Summary

Gout is a painful type of inflammatory arthritis that results from an accumulation of excess uric acid, which forms urate crystals that deposit in the joints. This condition often initiates in the big toe and typically affects one joint at a time. It is observed more frequently in males than in females, often beginning in middle age.

While gout symptoms can resemble those of other forms of arthritis, an accurate diagnosis can be achieved through joint fluid analysis, blood tests, and imaging studies. Following a confirmed gout diagnosis, treatment generally involves a combination of prescribed medications to manage uric acid levels and dietary adjustments to mitigate triggers.

It is crucial to contact your doctor if you experience symptoms indicative of gout. Early diagnosis and timely treatment are pivotal in reducing the risk of severe complications, such as the formation of painful kidney stones and the development of permanent joint damage. Proactive management ensures better long-term outcomes and preservation of joint health.

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