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You are here: Home / Cat Help / How to Treat and Prevent Cat Bladder Crystals

How to Treat and Prevent Cat Bladder Crystals

By Ashley Pinson
This post contains affiliate links. This means if you click on the link and purchase something, we receive an affiliate commission at no extra cost to you. All opinions and recommendations remain our own.

How to Prevent Cat Bladder Crystals

Bladder crystals form from minerals in your cat’s diet and can grow big enough to develop stones. It’s important to understand the signs that your cat may have urinary crystals to prevent unnecessary suffering. Diagnosis and treatment are straight-forward. Working with your veterinarian, you can provide your cat with a high quality of life. Surgery may not be necessary.

Depending on the kind of crystals your cat has developed, your cat’s diet can be manipulated to dissolve the stones. Changes to diet and water intake are key to preventing crystals and stones from forming again.

Table of Contents

  • Symptoms
  • Diagnosis
  • Treatment
  • Struvite Crystals
  • Calcium Oxalate Crystals
  • Urate Crystals
  • Lifestyle Adjustments
    • Change Diet
    • Purina Pro Plan Veterinary Diets UR St/Ox Urinary Feline Formula Dry Food
    • Hills C/D Multicare Bladder Health Cat Food
    • Hill’s Prescription Diet k/d Feline Renal Health Dry Food
    • Increase Water
    • Canned Food
    • Purina Veterinary Diets UR Urinary Tract Canned Cat Food
    • Hill’s Prescription Diet c/d Feline Multicare Urinary Tract Chicken & Vegetable Stew Canned Cat Food
    • Flavored Water
    • Running Water
    • PetSafe Drinkwell Multi-Tier Dog and Cat Water Fountain
    • PetSafe Drinkwell Mini Dog and Cat Water Fountain
    • Catit Flower Fountain
  • Encourage Exercise
    • Cat Dancer Products Rainbow Cat Charmer
    • Petstages Cat Tracks Cat Toy
    • Go Pet Club Cat Tree Furniture 62 in. High
    • Yaheetech 53.5″ Cat Tree Tower Condo Furniture Scratch Post for Kittens Pet House Play
  • Complications
  • Recurrence and Prevention
    • New Premium Charcoal Filters for PetSafe Drinkwell Fountains
    • Filters for Catit Design Senses Fountains and Catit Flower Fountains
    • Further Reads

Symptoms

Recognizing the signs of bladder crystals is important to get your cat the help he needs. Your cat may have bladder stones or crystals if he has the following symptoms:

  • Straining while urinating
  • Urinating often, but in small quantities
  • Urinating anywhere other than their litter box
  • Distressed behavior while urinating
  • Licking their genitals
  • Discolored urine, especially if it appears bloody

Some cats don’t show any signs of bladder crystals. This is just one reason why an annual exam is important.

How to Treat and Prevent Cat Bladder Crystals

Diagnosis

If you suspect your cat may have bladder crystals, take her to your veterinarian for proper diagnosis right away. Stones that have grown large enough may be felt through the abdominal wall. For proper diagnosis, your cat’s veterinarian will probably use a combination of urinalysis, ultrasound, or x-rays.

Diagnosis should include determining what kind of crystals have formed as treatment is different for the different types.

Treatment

There are a variety of ways to help your cat at home with the direction of your veterinarian. Diet adjustments can be made depending on what kind of crystals your cat has. The crystals may be dissolved by changing the pH levels of your cat’s urine.

For larger crystals, or in the case of an obstruction, surgery may be necessary to remove the crystals. With any kind of crystals, it is important to increase your cat’s water intake. You can encourage this by providing fresh water at all times and switching to canned food instead of dry food.

Struvite Crystals

Struvite crystals are formed in more alkaline urine and are made up of ammonium, phosphate and magnesium. It is possible to dissolve the crystals through diet.

Your veterinarian may prescribe a diet to make your cat’s urine more acidic. Do not give your cat urine acidifiers if your cat is on a prescription diet.

You will also need to increase your cat’s water intake to help make the urine more dilute. This will help dissolve or flush the crystals and help prevent the formation of new ones.

Calcium Oxalate Crystals

Calcium oxalate crystals tend to form in more acidic urine. Unfortunately, there is no way to dissolve the stones through diet, so surgery or hydro propulsion may be necessary to remove the stones.

A diet designed to make your cat’s urine more alkaline can help to prevent the crystals from forming.

Like with struvite crystals, increasing your cat’s water intake is essential to treat and prevent crystals and stones from forming.

Urate Crystals

Urate crystals are more common in dogs but have been found in cats as well. A diet lower in protein may be prescribed by your veterinarian to balance the pH of your cat’s urine.

Due to its rarity, no formulated diet exists for cats with urate crystals. A diet lower in protein, and especially purines may be prescribed.

Again, increase your cat’s water intake to both help treat the crystals and prevent them from forming again.

Lifestyle Adjustments

If there are no complications requiring surgery, treatment for urinary crystals is easy and simple. Increase your cat’s water intake. And your veterinarian may prescribe a diet to balance the pH levels of your cat’s urine.

Change Diet

Working with your veterinarian to know which diet to feed your cat is crucial. Depending on the crystals your cat has, your cat may need adjustments to protein, calcium, magnesium, or phosphorus.

Increasing your cat’s water intake is also important. Switching your cat to a canned food diet instead of dry is an easy way to do this.

Purina Pro Plan Veterinary Diets UR St/Ox Urinary Feline Formula Dry Food

Purina Pro Plan Veterinary Diets UR St/Ox Urinary Feline Formula Dry Food

Dry food formulas for urinary crystals are available. If your cat refuses to eat wet food, dry food can be. Mixed with water to increase his water intake.

Purina Pro Plan Veterinary Diets UR Urinary St/Ox Feline Formula Dry Cat Food | Chewy
Purina Pro Plan Veterinary Diets UR Urinary St/Ox Feline Formula Dry Cat Food | Chewy

Features high-quality protein and promotes increased urine volume for dilution. Developed to help dissolve existing struvite stones while preventing both new stones and calcium oxalate crystals from forming in the future.

Check Price Buy at Amazon.com
We earn a commission if you click this link and make a purchase at no additional cost to you.

Hills C/D Multicare Bladder Health Cat Food

Hills C/D Multicare Bladder Health Cat Food

A dry food version is available, but remember to mix with water to increase your cat’s water intake.

Hill's Prescription Diet c/d Multicare Urinary Care with Chicken Dry Cat Food | Chewy
Hill's Prescription Diet c/d Multicare Urinary Care with Chicken Dry Cat Food | Chewy

Great tasting Hill's Prescription Diet c/d Multicare dry food was developed by nutritionists and veterinarians to help support your cat's urinary tract health. It contains the right balance of vital nutrients to help improve most lower urinary tract conditions without the need for surgery. 

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We earn a commission if you click this link and make a purchase at no additional cost to you.

Hill’s Prescription Diet k/d Feline Renal Health Dry Food

Hill's Prescription Diet k/d Feline Renal Health Dry Food

If you choose to use dry cat food, mix it with water to increase your cat’s water intake.

Hill's Prescription Diet k/d Feline Renal Health Dry Food | Chewy
Hill's Prescription Diet k/d Feline Renal Health Dry Food | Chewy

Made with controlled phosphorus and low sodium, plus therapeutic levels of l-carnitine and omega-3 fatty acids. Protects vital kidney and heart function and supports the natural ability to build lean muscle daily.

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We earn a commission if you click this link and make a purchase at no additional cost to you.

Increase Water

Encouraging your cat to drink more may be difficult due to your cat’s natural thirst tolerance. There are a few tricks you can use to increase your cat’s water intake.

Canned Food

Switching from dry cat food to canned cat food will increase your cat’s water intake drastically. You can increase it even more by mixing more water in with the canned food.

Purina Veterinary Diets UR Urinary Tract Canned Cat Food

Purina Veterinary Diets UR Urinary Tract Canned Cat Food

Your cat may need a prescribed diet specially formulated for acidifying his urine.

Purina Pro Plan Veterinary Diets UR St/Ox Urinary Formula Canned Cat Food | Chewy
Purina Pro Plan Veterinary Diets UR St/Ox Urinary Formula Canned Cat Food | Chewy

This wet cat food is paw-fect for all breeds of cats in any stage of life and is developed to help dissolve existing uroliths while preventing new struvite and calcium oxalate crystals from forming in the future.

Check Price
We earn a commission if you click this link and make a purchase at no additional cost to you.

Hill’s Prescription Diet c/d Feline Multicare Urinary Tract Chicken & Vegetable Stew Canned Cat Food

Hill's Prescription Diet c/d Feline Multicare Urinary Tract Chicken & Vegetable Stew Canned Cat Food

Your cat’s veterinarian may prescribe a diet lower in minerals to help prevent the repeat formation of calcium oxalate stones.

Hill’s Pet Nutrition C/D Multicare Urinary Care Chicken & Vegetable Stew Canned Cat Food | Chewy
Hill’s Pet Nutrition C/D Multicare Urinary Care Chicken & Vegetable Stew Canned Cat Food | Chewy

Enriched with antioxidants, potassium citrate & Omega-3 fatty acids and recommended for lifelong feeding of adult cats. Dissolves struvite stones in as little as 7 days (average 27 days) and reduces the risk of struvite & calcium oxalate stones. 

Check Price Buy at Amazon.com
We earn a commission if you click this link and make a purchase at no additional cost to you.

Hill’s Prescription Diet k/d Feline Renal HealthHill's Prescription Diet k/d Feline Renal Health A diet lower in proteins may be prescribed by your veterinarian.

Hill'S Prescription Diet K/D Feline Renal Health | Chewy
Hill'S Prescription Diet K/D Feline Renal Health | Chewy

Protects vital kidney and heart function with proven nutrition developed by nutritionists and veterinarians. Made with controlled phosphorus and low sodium, plus therapeutic levels of l-carnitine and omega-3 fatty acids.

Check Price Buy at Amazon.com
We earn a commission if you click this link and make a purchase at no additional cost to you.

The links provided are for your convenience and are not meant to replace the advice of your cat’s veterinarian.

Flavored Water

If your cat objects to the taste of the water where you live, add some of the juice from a can of tuna or chicken packed in water. You can also try a water filter for your cat’s water.

Running Water

Some cats love drinking from running water. But you don’t want to leave a tap running all the time. Investing in a water fountain for your cat is an excellent solution.

Look for a fountain with different drinking options as some cats like to drink from a pool of water, while others like to drink from a falling stream.

PetSafe Drinkwell Multi-Tier Dog and Cat Water Fountain

PetSafe Drinkwell Multi-Tier Cat and Dog Water Fountain | Chewy
PetSafe Drinkwell Multi-Tier Cat and Dog Water Fountain | Chewy

The Drinkwell Multi-Tier Pet Fountain supplies cats and dogs with a continual stream of water to increase their drive for hydration, reducing the risk of urinary tract problems or kidney disease. It has an elevated dish along with a lower bowl, making it easy for older pets to drink without any discomfort from bending over.

Check Price Buy at Amazon.com
We earn a commission if you click this link and make a purchase at no additional cost to you.

PetSafe Drinkwell Mini Dog and Cat Water Fountain

PetSafe Drinkwell Mini Pet Fountain for Cats and Small Dogs | Chewy
PetSafe Drinkwell Mini Pet Fountain for Cats and Small Dogs | Chewy

The Mini Fountain spouts 40 ounces of fresh, filtered water, giving your pet the option to drink from the flowing stream of water or the shallow bowl. Your pet's drinking water is filtered through the activated carbon filter, keeping water clean and fresh-tasting. 

Check Price Buy at Amazon.com
We earn a commission if you click this link and make a purchase at no additional cost to you.

Catit Flower Fountain

Catit Senses 2.0 Cat Flower Fountain 3L | Chewy
Catit Senses 2.0 Cat Flower Fountain 3L | Chewy

This innovative fountain encourages your pal to drink more water, keeping her healthy and hydrated using a unique, customizable design. With three water flow settings, you can switch between a gentle flow of water, a bubbling top, or faucet-like streams.

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We earn a commission if you click this link and make a purchase at no additional cost to you.

Encourage Exercise

Exercise is important for any cat’s health. If your cat tends to be lazier than most, you can try enticing him with new and interesting toys.

Cat Dancer Products Rainbow Cat Charmer

Cat Dancer Products Rainbow Cat Charmer | Chewy
Cat Dancer Products Rainbow Cat Charmer | Chewy

It’s designed to active your pal’s hunting instincts to get him engaged in play, and is perfect to add daily exercise to keep your kitty healthy, and to help maintain your bond by playing together.

Check Price Buy at Amazon.com
We earn a commission if you click this link and make a purchase at no additional cost to you.

Petstages Cat Tracks Cat Toy

Petstages Cat Tracks Cat Toy | Amazon
Petstages Cat Tracks Cat Toy | Amazon
$11.99

With three exciting levels, this interactive toy encourages extended playtime as the colorful balls spin and roll around and around. It’s great for multiple-cat households and independent play because it lets cats enjoy an action-packed afternoon even when you’re not at home. 

Check Price Buy at Amazon.com
We earn a commission if you click this link and make a purchase at no additional cost to you.

A cat tree for him to climb on is also an excellent way to encourage some exercise. Most cats love to watch over their territory from a high perch.

Go Pet Club Cat Tree Furniture 62 in. High

Go Pet Club 62-Inch Cat Tree | Chewy
Go Pet Club 62-Inch Cat Tree | Chewy

This tiered tree includes 1 hanging rope for your pal to play with, a ladder so he can climb up and down, a basket for him to relax in and multiple levels and perches for your cat to enjoy. 

Check Price Buy at Amazon.com
We earn a commission if you click this link and make a purchase at no additional cost to you.

Yaheetech 53.5″ Cat Tree Tower Condo Furniture Scratch Post for Kittens Pet House Play

Yaheetech 51in Cat Tree Tower Condo Furniture Pet House Play | Chewy
Yaheetech 51in Cat Tree Tower Condo Furniture Pet House Play | Chewy

Two enclosed condos with doors and windows give your kitties a hiding spot, while three perches allow your cats to look out over their home. It also includes a safety strap to help secure the cat tree to a wall, which helps prevent your cat from getting hurt when leaping off the tree.

Check Price Buy at Amazon.com
We earn a commission if you click this link and make a purchase at no additional cost to you.

Complications

There are complications that can arise from bladder crystals. Any obstruction caused by a stone in the urinary tract is life-threatening for your cat.

Male cats are at greater risk of having an obstruction as the urethra is more narrow in males than in females.

The signs of obstruction are:

  • Nausea and vomiting
  • Loss of appetite
  • A distended abdomen

If your cat exhibits symptoms of obstruction, seek medical help right away.

Recurrence and Prevention

The best thing you can do to prevent bladder crystals from forming is to make sure your cat gets enough water in his diet. This makes the urine more dilute. It also decreases the amount of time urine stays in the bladder. This decreases the chances of crystals forming, regardless of pH levels.

Your cat may need to have checkups in addition to his annual exam to ensure that crystals are not forming again. Check with your veterinarian if you need to continue any prescribed diet.

Hard water may be linked to the formation of crystals as well. If you live in an area with hard water, investing in a pet fountain with a filter may be another method of prevention. Remember to change the filter regularly.

New Premium Charcoal Filters for PetSafe Drinkwell Fountains

Premium Charcoal Filters for PetSafe Drinkwell Fountains | Amazon
Premium Charcoal Filters for PetSafe Drinkwell Fountains | Amazon
$12.75

Water is drawn through the charcoal filter, which is segmented into 6 compartments to facilitate filtration and reduce the settling of the charcoal within the filter.

Buy at Amazon.com
We earn a commission if you click this link and make a purchase at no additional cost to you.
05/29/2025 03:48 pm GMT

Filters for Catit Design Senses Fountains and Catit Flower Fountains

Filters for Catit Design Senses Fountains and Catit Flower Fountains | Chewy
Filters for Catit Design Senses Fountains and Catit Flower Fountains | Chewy

The filters capture impurities, like hair and debris, that can end up in her water. The addition of charcoal removes odors and bad tastes, ensuring her water is extra-enticing.

Check Price Buy at Amazon.com
We earn a commission if you click this link and make a purchase at no additional cost to you.

Recognizing the signs of cat bladder crystals is crucial to ensuring that your cat lives a long and happy life. Working with your veterinarian you can help your cat through treatment and establish the changes needed to help prevent reoccurrence.

This information is provided for education and convenience. It is not meant to take the place of the advice of your cat’s veterinarian. If you suspect your cat has bladder crystals, please take him to his veterinarian right away.

Further Reads

  • How to Choose the Best Cat Water Fountain
  • Which Cat Breed Sheds The Least?
  • How to Find the Best Cat Water System

Filed Under: Cat Help

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