Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Feline Idiopathic Cystitis in Cats: Signs, Causes, and Care

Share

cat pee on carpet

Urinary tract diseases are fairly common in cats, so it’s important for cat owners to be well-informed about this area of cat health. Cats can contract several different kinds of urinary tract diseases. Veterinarians will conduct tests to diagnose the specific type of urinary tract disease. When they don’t find a clearly identifiable cause, they diagnose cats with Feline Idiopathic Cystitis (FIC).

FIC is known to be extremely painful for cats, so it is important to act right away and have them receive treatment for FIC or any other urinary tract disease.

divider cats oct 2024

What Is Feline Idiopathic Cystitis?

Feline Idiopathic Cystitis is a type of feline lower urinary tract disease (FLUTD). Common causes of FLUTD include urinary tract infections (UTIs) and bladder crystals or stones. In some cases, a cat won’t have a UTI or bladder crystals. Veterinarians can conduct further tests to find any other factors that may be causing FLUTD. If all other causes have been eliminated, the cat will receive an FIC diagnosis as an exclusionary diagnosis.

FIC refers to inflammation of the bladder. The inflammation can vary from mild to severe. In most severe cases, FIC can cause an obstruction and prevent cats from urinating. Therefore, if you have any concerns about your cat having FIC or another FLUTD, it’s important to respond right away and take your cat to your veterinarian.

Male-vs-Female-Cat-Urinary-System
You are free to use this image but we do require you to link back to Catster.com for credit

What Are the Signs of Feline Idiopathic Cystitis?

Because FIC is an exclusionary diagnosis, signs of it can vary from cat to cat. The following are some signs that cats might show if they have FIC:

  • Bladder stones
  • UTIs
  • Blood in urine
  • Urinating more frequently
  • Urinating outside of the litter box
  • Pain while urinating
  • Straining to urinate
  • Excessive licking around the genital area
  • Lethargy
  • Decreased appetite
  • Vomiting
  • Diarrhea
  • Changes in mood or behavior

Straining to urinate is often a serious sign because it could indicate that there is a blockage in the bladder. If untreated, this can lead to further complications that can even become fatal. So, it’s best to be safe rather than sorry and take your cat to your veterinarian right away if your cat is having difficulty urinating.

Is your cat presenting any of these signs? We suggest you speak with a vet online.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

Preventative wellness PGV mention keep cat healthy Preventative wellness PGV mention keep cat healthy mobile

What Are the Causes of Feline Idiopathic Cystitis?

“Idiopathic” refers to unknown or spontaneous causes. So, the causes of FIC are untraceable. However, specific types of cats seem to be more susceptible to it than others. FIC is more prevalent in cats less than 10 years old. It also seems to affect male cats more than female cats and cats that are overweight. Stress may also trigger FIC.

How Is Feline Idiopathic Cystitis Diagnosed?

Abyssinian cat check by vet
Image By: Nataly Mayak, Shutterstock

As we’ve mentioned earlier, FIC is diagnosed when veterinarians rule out all other causes. Veterinarians can run different kinds of tests to diagnose a type of FLUTD. Along with observing signs and symptoms, they can complete a urinalysis. Urinalyses are done by using a small needle to extract a urine sample from a cat’s urine. This sample is submitted to a lab and analyzed for any abnormalities. Samples with bacteria present indicate UTIs, and samples without bacteria are a step closer to an FIC diagnosis.

Veterinarians may run a more thorough test with a urine culture. A urine culture takes a urine sample and places it in an incubator to promote bacterial growth. If bacteria are present in the urine culture, they’re often tested against antibiotics to determine the best course of treatment.

Many other types of diagnostic tests can be completed to determine cases of FIC. Veterinarians can do imaging tests, like abdominal x-rays or ultrasounds. They can also conduct a urethrocystoscopy to check the bladder wall and detect any possible cases of cancer.

Because FIC can be difficult to detect, it may be worthwhile exploring pet insurance options. Veterinary care bills can rack up as FIC diagnoses can require more extensive testing. So, if your cat is in a group at risk of FIC, make sure to explore your options before your cat gets a case of FIC because pet insurance companies won’t help pay for diagnostic testing or treatment for pre-existing conditions.

How Do I Care for a Cat with Feline Idiopathic Cystitis?

Treatment for FIC depends on the severity of the episode. Because there’s no known cause for FIC, symptom management is the usual course of treatment. For example, cats may be prescribed medication to help alleviate any pain.

FIC episodes can last for days or even weeks. You can track your cat’s recovery process during this period. Since reducing stressors can help with your cat’s recovery, make sure to create a comfortable and quiet space your cat can retreat to and feel safe. If your cat’s condition deteriorates, alert your veterinarian right away.

Veterinarians may recommend making some lifestyle changes for cats to eliminate any triggers for future FIC episodes. Since there may be ties to stress and triggering FIC, it can be helpful to remove or reduce some potential stressors. This can include things like implementing a daily routine to help your cat know what to expect and prevent any anxiety. You can also switch to a fixed feeding schedule to help regulate your cat’s food intake and prevent your cat from feeling any stress about when it’ll eat its next meal.

It may also be helpful to change your cat’s diet. Prescription diets for urinary care are available, so it can be worthwhile to discuss with your veterinarian if prescription food is appropriate for your cat. You can also try adding more moisture to your cat’s food by mixing wet food or meal toppers with its dry food or completely switching over to wet food. This can help your cat stay hydrated. Adding more water bowls around your house or purchasing a cat water fountain can also encourage your cat to drink more.

sick cat lying on blanket
Image credit: one photo, Shutterstock

divider cats oct 2024

Frequently Asked Questions (FAQs)

What Is the Prognosis for Feline Idiopathic Cystitis?

Cats diagnosed with FIC can have a generally positive prognosis and live a normal lifespan. Making some lifestyle changes and reducing stress may prevent recurring FIC episodes for some cats. However, in some cases, conditions can worsen and lead to bladder obstruction.

How Common is Feline Idiopathic Cystitis?

FIC is one of the most common types of FLUTD. About two-thirds of cats with FLUTD receive an FIC diagnosis. FIC can be acute or recurring. First-time cases can be resolved with or without treatment. However, about 50% of cats will get a second FIC episode within 1 year.

divider cats oct 2024

Conclusion

Cases of FIC can be frustrating because they have an unknown cause. However, cats can still live long and happy lives, even if they experience FIC episodes. Cat owners can help their cats manage symptoms and make lifestyle changes to reduce the risk of recurring episodes. Watching for flare-ups, reducing stressors, and being on top of routine veterinary visits can also improve treatment and daily living for many cats.


Featured Image Credit: New Africa, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

One in 100 Cats Gets Diabetes – Here’s How to Catch It Early

One in every 100 cats develops diabetes.1 That’s not a rare, unlucky condition reserved for cats with obvious health problems. It’s common enough...

Dramatic Rescue Turns Into Dramatic Reunion

What started as a routine call for the RSPCA became a heroic, five-hour rescue featuring one trapped and traumatized cat, an emotional family...

Ask Dr. Paola – Help! How Do I Know if it’s Ear Mites! (May 4, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

Hope for the Tiniest Fighters: Baby Kitten Rescue | Heroes of the Pet World

In a world where the smallest and most vulnerable animals are often the easiest to overlook, Caroline and Baby Kitten Rescue’s work is...

More related

How to Tell If My Cat Is Dehydrated: 8 Vet-Reviewed Signs

Cats don’t always advertise when something is wrong, and if your cat isn’t getting enough water, you might not even realize it if...

300+ Male Cat Names: The Ultimate List of Masculine, Adorable & Tough Options

Having a hard time naming your cat is a relatable challenge that many cat owners experience. There are endless possibilities, and it’s often...

Do All Cats Have Retractable Claws? Vet-Reviewed Science & Info (With Infographic)

As cat owners, we love our little house panthers. But the one thing we aren’t fond of is the claws. Cats show their...

Catster Photo Contest: Cats of the Week Winners (July 17, 2025)

Every week our team gets the privilege of sorting through our readers photos to choose what cats will win this weeks contest! See...

Keep reading

Maine Coon Cat Size: Info, Pictures & Height Comparison Chart (Vet-Verified)

Maine Coons are known to be some of the biggest domestic cats there are. The breed originated in the US state of Maine, where they had to face brutally cold winters, helping them develop into a rugged breed that’s fit...

big-blue-maine-coon-cat-in-forest

Can I Wash My Cat with Dr. Bronner’s? Vet-Verified Facts & Considerations

As all kitty owners know, cats and water typically don’t go together. However, what if your feline friend needs an emergency bath, and you don’t have any pet shampoo handy? In that case, using an unscented castile soap like Dr....

cat on top of bathtub

9 Best Cat Litters for Odor Control in the UK in 2026: Reviews & Top Picks

Ask any cat owner about cat litter and chances are you’re likely to hear a funny story. And why? Because cats can be a bit particular about their litter, litter boxes, and all of the ins and outs of their...

woman cleaning cat litter

Can Cats Carry Bed Bugs? Vet-Reviewed Info, Risks & What to Do

Bed bugs are a major public health problem. Many people associate them with the filthiest, most run-down apartments, but the truth is that these pests are not specifically attracted to dirt, and they can be found in many places. However,...

vet holding magnifying glass searching cat fleas over a grey and orange cat

Cat Shock Collars: How They Work, Safety Advice & Alternatives (Vet-Reviewed)

Several products are available to train pets, but the shock collar is one of the most controversial. It’s a device more commonly associated with training dogs and is used to train an animal to stop a specific behavior. Some swear...

cat with collar_Pixabay

Is Christmas Cactus Poisonous to Cats? Vet-Reviewed Houseplants Examined

The unfortunate truth of living with cats is that you’ve signed up to live with a pet that will get into everything—plants included. If you have a Christmas cactus in your home, you might wonder if this plant is poisonous...

Catster_Is Christmas Cactus Poisonous to Cats

Can Cats Drink Goat Milk? Vet-Reviewed Facts & FAQs

There are plenty of health benefits associated with drinking goat milk in humans, so it’s only natural to wonder about goat milk for cats and if it’s safe to allow them to drink it. So can cats drink goat milk?...

Can Cats Drink Goat Milk

Ragdoll Cat Grooming: 10 Vet-Approved Tips & Tricks

Ragdoll cats were developed in the early 1960s in California and are among the most affectionate and friendly cat breeds around today. Their semi-longhaired coats are thick and don’t often tangle, but these cats can still benefit from regular grooming...

flame point ragdoll cat

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.