CKD Online Editorial Team
Last Updated: October 19, 2026 • Reading Time: 4 min
Introduction
Gout and kidney stones are two painful conditions that can sometimes occur together. Both may be associated with elevated uric acid levels, and both can affect a person’s quality of life.
If you have gout, you may wonder whether it increases your risk of developing kidney stones. You may also be concerned about how kidney disease affects uric acid levels and what dietary changes could help protect your health.
Understanding the relationship between gout and kidney stones is important because early diagnosis, appropriate treatment, and personalized lifestyle changes can help reduce complications.
In this guide, we will explain how gout and kidney stones are connected, identify common symptoms, discuss foods that may affect uric acid, and explore practical prevention strategies.
What Is Gout?
Gout is a form of inflammatory arthritis that develops when uric acid levels in the blood become too high and urate crystals accumulate in joints.
Uric acid forms when the body breaks down substances called purines. These substances occur naturally in the body and in many foods.
Normally, the kidneys help remove uric acid through urine. However, uric acid can accumulate when the body produces too much or the kidneys do not remove enough.
Common symptoms of gout include:
- Sudden, intense joint pain
- Swelling and redness
- Warmth around an affected joint
- Tenderness that makes movement difficult
- Repeated attacks affecting the same or different joints
The big toe is a common site, but gout can also affect the ankles, knees, wrists, and fingers.
Without appropriate management, repeated gout attacks can lead to persistent joint problems and tophi, which are deposits of urate crystals under the skin.
What Are Kidney Stones?
Kidney stones are hard deposits that form when certain substances in urine become concentrated enough to crystallize.
These substances may include calcium, oxalate, phosphate, uric acid, and other compounds.
The main types of kidney stones include:
- Calcium oxalate stones: One of the most common types.
- Calcium phosphate stones: Associated with calcium and phosphate in urine.
- Uric acid stones: More likely to develop in persistently acidic urine.
- Struvite stones: Often associated with certain urinary tract infections.
- Cystine stones: Associated with a rare inherited condition.
Small stones may pass through the urinary tract without causing noticeable symptoms. Larger stones or stones that obstruct urine flow can cause severe pain and complications.
Common symptoms include sharp pain in the back or side, blood in the urine, nausea, vomiting, and painful urination.
Fever or chills combined with suspected kidney stones may indicate an infection and require urgent medical assessment.
How Are Gout and Kidney Stones Connected?
The relationship between gout and kidney stones is particularly important when uric acid is involved.
1. High Uric Acid Levels
People with gout have elevated uric acid levels that can lead to crystal formation in the joints.
In some individuals, uric acid can also contribute to kidney stone formation. However, high blood uric acid alone does not mean that someone has uric acid kidney stones.
2. Acidic Urine
Uric acid stones are more likely to form when urine is persistently acidic.
Even when blood uric acid is not extremely elevated, low urine pH can encourage uric acid to crystallize.
Doctors may evaluate urine chemistry to understand why stones are forming and which prevention strategy is appropriate.
3. Reduced Kidney Function
The kidneys play an important role in removing uric acid from the body.
When kidney function declines, uric acid levels may increase. Gout and chronic kidney disease can therefore occur together, although the relationship is complex and varies from person to person.
People with kidney disease should discuss gout symptoms and uric acid management with their healthcare professional.
4. Dehydration and Concentrated Urine
Not drinking enough fluid can concentrate urine and increase the likelihood of crystal formation in susceptible individuals.
However, fluid recommendations must be individualized. People with advanced kidney disease, heart failure, or a prescribed fluid restriction should not increase water intake without medical guidance.
The National Kidney Foundation explains the relationship between gout, kidney disease, and uric acid in its gout and kidney disease guide.
Symptoms You Should Not Ignore
Gout and kidney stones cause different symptoms, although both may occur in the same person.
Gout
CKD Online Editorial Team reviews all medical content to ensure accuracy, clarity, and alignment with current clinical guidelines. Articles are updated regularly to reflect the latest evidence-based recommendations.