What Causes Gout?

Gout does not develop simply because someone eats one particular food or has a high uric acid level on a blood test. It is a complex condition involving urate metabolism, kidney function, genetics, age, health conditions, medications, and lifestyle factors.

At the center of gout is urate, a substance produced when the body breaks down purines. When urate accumulates over time, it can form microscopic, needle-shaped crystals in and around joints. The immune system reacts to these crystals, causing the inflammation associated with a gout flare.

But an important distinction is often missed: hyperuricemia does not automatically mean a person will develop gout. Many people have elevated blood urate without ever experiencing a gout attack.

So, what causes gout? The answer is usually a combination of factors rather than one single cause.

How Does Gout Develop?

To understand the causes of gout, it helps to follow what happens inside the body.

Your body naturally produces purines. They are also found in many foods. When purines are broken down, they ultimately produce urate.

Normally, the kidneys remove much of the body's excess urate through urine.

Gout becomes possible when this balance is disrupted.

This can happen when:

Once urate crystals accumulate in a joint, they can activate an inflammatory response. That response is responsible for the intense inflammation associated with gout.

The Two Main Biological Causes of Gout

At the most basic level, elevated urate generally results from one of two problems.

Why Does High Uric Acid Cause Gout in Some People but Not Others?

This is one of the most important questions about gout.

A high blood urate level increases the possibility of crystal formation, but hyperuricemia alone does not guarantee gout.

NIAMS notes that many people with elevated serum urate never develop gout.

Several factors may help explain this difference, including:

• How high the urate level becomes.
• How long urate remains elevated.
• Genetic differences.
• Kidney function.
• Other medical conditions.
• Environmental and lifestyle factors.
• Individual differences in inflammatory responses.

In other words, gout is better understood as the result of long-term urate imbalance combined with individual susceptibility, rather than a single trigger.

Major Risk Factors That Increase the Chance of Gout

Some factors cannot be changed, while others can potentially be modified.

Understanding the difference is useful because it helps separate unavoidable risk from areas where lifestyle or medical management may make a difference.

Family History and Genetics

Genetics can play an important role in gout.

If close family members have gout, your risk may be higher. Researchers have identified inherited differences that can affect how the body handles urate.

Genetics may influence how efficiently the kidneys transport and eliminate urate.

This also helps explain why two people with similar diets and lifestyles can have very different urate levels.

Having a family history does not mean that gout is inevitable. It simply means genetic susceptibility may be one part of the overall picture.

Age

The risk of gout generally increases with age.

Gout is more common during middle and later adulthood, although younger people can also develop it. NIAMS notes that gout tends to occur earlier in men, while women are more likely to develop it after menopause.

Age can interact with other risk factors, including kidney function, blood pressure, metabolic health, and medication use.

Sex and Hormonal Changes

Gout occurs more frequently in men, particularly during earlier adulthood.

Women generally have lower urate levels before menopause. After menopause, urate levels tend to approach those seen in men, and the risk of gout increases.

This is one reason gout should not be viewed exclusively as a men's health condition.

Overweight and Obesity

Body weight can influence gout risk through several pathways.

People with overweight or obesity may produce more urate and may also have greater difficulty eliminating urate through the kidneys.

Excess weight is also frequently associated with other gout-related conditions, including:

• High blood pressure
• Insulin resistance
• Diabetes
• Metabolic syndrome
• Kidney disease

The relationship is therefore more complicated than simply saying that body weight "causes" gout.

Kidney Disease and Gout

Kidney disease is one of the most important medical risk factors associated with gout.

When kidney function is impaired, the body may have more difficulty removing urate from the bloodstream. As urate accumulates, the likelihood of crystal formation can increase.

The relationship can also work in the other direction.

Long-standing gout may be associated with kidney complications, including urate kidney stones.

This is why people with gout and known kidney problems should discuss their condition and medications with a healthcare professional rather than relying solely on dietary changes.

High Blood Pressure and Metabolic Health

Gout often occurs alongside metabolic conditions.

These include:

NIAMS identifies metabolic syndrome, high blood pressure, diabetes, obesity, and chronic kidney disease among conditions associated with an increased likelihood of gout.

These conditions can influence urate levels through multiple pathways involving metabolism and kidney function.

This does not mean that having high blood pressure or diabetes automatically causes gout. Instead, these conditions can contribute to an environment in which elevated urate becomes more likely.

Alcohol and Gout Risk

Alcohol can increase the risk of gout.

Beer and distilled alcoholic beverages are particularly important because alcohol can interfere with urate handling and is associated with higher gout risk.

Alcohol can also contribute to dehydration and metabolic changes that may make gout more likely in susceptible individuals.

Importantly, alcohol is not necessarily the sole cause of someone's gout. It is better understood as one potentially modifiable risk factor among several.

Sugary Drinks and Fructose

Sugar-sweetened beverages are another factor associated with gout risk.

Drinks containing significant amounts of fructose can contribute to increased urate production. Mayo Clinic identifies fructose-sweetened beverages among dietary factors that can raise uric acid levels.

Examples include:

• Regular soft drinks
• Some sweetened energy drinks
• Sweetened fruit beverages
• Other beverages containing substantial added sugars

This is different from saying that every source of carbohydrate causes gout.

The concern is particularly related to added sugars and fructose-containing sweetened products.

High-Purine Foods and Gout

Purines are naturally occurring compounds found in human tissues and in many foods.

When purines are broken down, they contribute to urate production.

Some foods contain considerably more purines than others, including certain organ meats and some seafood.

Examples include:

However, diet should be viewed as one part of gout risk, not the entire explanation.

A person can develop gout without eating large amounts of high-purine foods, particularly when genetics, kidney function, age, medications, or metabolic conditions are involved.

For a detailed food-by-food discussion, see our guide to foods to avoid with gout.

You can also learn more about building an overall dietary pattern in our low-purine diet guide.

Medications That Can Increase Gout Risk

Some medications can increase urate levels or make gout more likely.

Diuretics

Diuretics are commonly used to manage conditions such as high blood pressure and fluid retention. Some diuretics can increase gout risk because they can reduce urate elimination by the kidneys.

Low-Dose Aspirin

Low-dose aspirin can affect urate handling and is recognized as a medication that may increase gout risk. However, you should never stop prescribed aspirin on your own because it may have been recommended for an important cardiovascular reason.

Niacin

Large amounts of niacin, also known as vitamin B3, can increase urate levels.

Immunosuppressive Medications

Certain immunosuppressive medicines, including cyclosporine, can increase gout risk. These medications are used in specific medical situations, including after organ transplantation.

If you suspect a medication is contributing to gout, discuss it with your healthcare professional. There may be alternative treatments depending on the reason the medicine was prescribed.

Medical Conditions That Can Increase Gout Risk

Beyond kidney disease and metabolic conditions, several other medical situations can contribute to elevated urate.

These include:

• Certain cancers
• Psoriasis
• Conditions associated with rapid cell turnover
• Some inherited disorders affecting urate metabolism
• Metabolic syndrome
• Kidney disease

Rare inherited disorders such as Kelley-Seegmiller syndrome and Lesch-Nyhan syndrome can cause abnormal urate metabolism, although these conditions are uncommon.

Certain cancer-related conditions can also produce very rapid cellular breakdown and dramatically increase urate levels.

These situations are very different from the common lifestyle-related risk factors and require medical evaluation.

Can Dehydration Cause Gout?

Dehydration is not usually considered a single underlying cause of gout.

However, inadequate fluid intake can contribute to conditions that favor urate crystal formation, particularly in people who are already susceptible.

Because the kidneys remove urate through urine, maintaining adequate hydration supports normal kidney function and urine production.

During periods of illness, heavy exercise, heat exposure, or reduced fluid intake, dehydration can become more relevant.

Still, drinking water alone cannot eliminate the underlying causes of chronic gout.

Can Stress Cause Gout?

Stress itself is not considered a primary cause of gout.

However, periods of physical or psychological stress may coincide with changes that can affect gout risk, such as:

• Poor sleep
• Changes in eating habits
• Alcohol consumption
• Dehydration
• Illness
• Medication changes

It is therefore more accurate to think of stress as a possible contributor to an unfavorable set of circumstances rather than a direct cause of urate crystal formation.

What Can Trigger a Gout Flare?

A cause of gout and a trigger for a gout flare are not necessarily the same thing.

Gout develops over time as urate accumulates and crystals form.

A flare can then occur when inflammation around those crystals is activated.

Potential flare triggers include:

NIAMS notes that gout flares may be triggered by foods, alcohol, medications, physical trauma, or certain illnesses.

This distinction is important because avoiding one trigger does not necessarily remove the underlying susceptibility to gout.

Is Gout Caused Only by Diet?

No.

Diet can influence urate levels and gout risk, but gout is a multifactorial disease.

A person's risk may reflect a combination of:

• Genetics
• Kidney function
• Age
• Sex and hormonal status
• Body weight
• Metabolic health
• Alcohol consumption
• Dietary patterns
• Medications
• Other medical conditions

This explains why someone who follows a relatively healthy diet may still develop gout.

Likewise, someone who occasionally eats a high-purine food does not necessarily develop gout.

For more information about dietary factors, see our guide to the best foods for gout.

What Causes Gout in Younger Adults?

Gout is less common in younger adults, but it can occur.

When gout develops at a younger age, healthcare professionals may consider factors such as:

• Strong family history
• Genetic conditions
• Kidney disease
• Certain medications
• Significant metabolic abnormalities
• Severe or persistent hyperuricemia
• Other underlying medical conditions

Younger age does not rule out gout, but early or unusually severe disease may warrant a closer evaluation of possible underlying contributors.

Can You Prevent Gout If It Runs in Your Family?

A family history cannot be changed, but it does not guarantee that you will develop gout.

People with a family history can focus on modifiable factors such as:

• Maintaining a healthy weight
• Limiting excessive alcohol
• Avoiding frequent sugar-sweetened beverages
• Staying adequately hydrated
• Managing blood pressure and metabolic health
• Addressing kidney disease
• Reviewing medications with a healthcare professional when appropriate

These measures do not eliminate genetic susceptibility, but they may reduce some modifiable contributors to gout risk.

The Bottom Line: What Really Causes Gout?

Gout develops when urate accumulates in the body and eventually forms crystals that trigger inflammation.

The underlying imbalance generally involves too much urate production, too little urate elimination, or a combination of both.

But the reason one person develops gout while another does not is usually more complicated.

Genetics, kidney function, age, sex, body weight, metabolic health, diet, alcohol, medications, and other medical conditions can all influence risk.

Understanding these factors is more useful than blaming gout on one food or one lifestyle habit.

If you are concerned about your personal risk, a healthcare professional can evaluate your medical history, medications, kidney function, and serum urate level. A tool such as the Gout Risk Calculator can also be used as an educational starting point, but it cannot diagnose gout or replace medical evaluation.

Frequently Asked Questions

Medical Disclaimer

This content is for educational and informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Sources

• National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), Gout: Symptoms, Causes & Risk Factors.
• Mayo Clinic, Gout: Symptoms and causes.
• Mayo Clinic, Diuretics: Cause of gout?
• Mayo Clinic, High uric acid level: Causes.
• American College of Rheumatology, Gout Clinical Practice Guidelines.

Evaluate Your Personal Risk

Understand how various factors contribute to your overall gout risk profile.