What Are Kidney Stones in Cats and How to Combat Them?

Kidney stones in cats, also known as uroliths or urinary stones, are solid accumulations that form in the feline urinary tract from crystallized minerals. They can be located in the kidneys, bladder, or urethra and are a frequent cause of discomfort, infections, and urinary diseases.

Most Common Types of Kidney Stones in Cats

The two most common types of stones in cats are:

• Struvite stones: These usually develop when the urine pH is too alkaline and there is an excess of minerals such as magnesium or phosphorus.
• Calcium oxalate stones: They form when there is an increase in calcium and oxalate in the urine, typically in more acidic environments.

Both types can partially or completely obstruct the cat’s urinary tract, making urination difficult and causing severe pain, urinary infections, and even emergency situations if left untreated.

Symptoms of Urinary Stones in Cats

Detecting this issue early is crucial to avoid complications. Some of the most common signs include:

• Difficulty or pain when urinating
• Blood in the urine
• Frequent urination in small amounts
• Excessive licking of the genital area
• Whining or meowing when using the litter box
• Vomiting, lethargy, or loss of appetite
• Restlessness or unusual behavior

At the first sign of any of these symptoms, it is essential to visit a veterinarian for an accurate diagnosis.

Treatment for Kidney Stones in Cats

The treatment will depend on the type of stone and the severity of the case. In some cats, a change in diet may be enough to dissolve the stones or prevent their recurrence. In others, medical or surgical intervention may be necessary.

Diet as a Therapeutic Tool

Proper nutrition is key to preventing and treating urinary stones. At Picart, we have developed Picart Select Diet Renal, a functional and complete food specially formulated for cats with renal issues and oxalate stones. This recipe helps:

• Reduce the concentration of minerals that form stones
• Regulate urine pH
• Support long-term kidney and urinary health
• Provide balanced, highly digestible nutrition

Additionally, Picart Select Diet Renal is made with high-quality ingredients, low phosphorus content, and carefully selected proteins—ideal for protecting your cat’s kidney function.

Always consult with your veterinarian before making any dietary changes, especially if your cat has a history of oxalate stones.

Other Possible Treatments

When diet alone is not enough, the veterinarian may recommend:

• Pharmacological therapies: Antibiotics, anti-inflammatory drugs, or specific supplements
• Cystotomy: Surgery to remove bladder stones
• Urinary catheterization: To eliminate obstructions in the urethra
• Continuous water intake: Keeping your cat well-hydrated is essential to dilute urine and prevent new stone formation

How to Prevent Kidney Stones in Cats

Prevention is the best medicine. Here are some key tips:

• Opt for high-quality food tailored to your cat’s urinary health needs
• Encourage fresh water consumption (consider water fountains if your cat drinks little)
• Minimize stress, as it can affect urinary health
• Schedule regular veterinary check-ups at least every six months

Taking care of your cat’s urinary health ensures a long and happy life. With a specialized diet like Picart Select Diet Renal and the guidance of a trusted veterinarian, you can effectively prevent and combat kidney stones.