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Dr. Coates is a veterinarian based in the other “Sunshine State” – that's Colorado to the rest of you – where she lives and plays with a varied range of animals. She shares her professional and personal experiences, Monday through Friday, here on petMD's blog, the Fully Vetted. Log in for your daily dose of her insight and wisdom.

 

Getting Rid of the Smell When Your Cat Pees Outside the Box

October 14, 2011 / (20) comments


Recently, I came across a number of distressing statistics all relating to cat welfare.

 

1. Behavioral problems cause more pets to be relinquished to animal shelters than any other issue.

2. The behavioral problem most frequently reported by cat owners is house soiling.

3. The number one medical problem affecting cats in 2010, according to Veterinary Pet Insurance’s records, is lower urinary tract disease.

Put this all together and what does it mean? Owners HATE it when cats urinate outside of the litter box, and the medical problems that often cause them to do so are incredibly common. In too many cases, this disastrous combination leads to the weakening or total dissolution of the human-animal bond. In the worst case scenario, an owner then dumps his or her cat at the nearest shelter, where it stands a very good chance of being euthanized.

Let’s start by dealing with the first thing that a cat owner really wants to know when he or she finds cat urine outside of the litter box. How do I get rid of that smell?

Getting rid of urine odors is not just an aesthetic necessity. Cats are attracted to the smell and are much more likely to continue urinating or spraying in a soiled area if it is not thoroughly cleaned.

First, you have to find the source(s). You can crawl around your house on hands and knees sniffing in all the likely places, but a more dignified method is to use a black light. Cat pee fluoresces under a black light, so wait until dark, turn off your lights, and slowly walk through your house with a handheld device looking for a bright, neon green color. Then use your nose to confirm that it is actually urine.

Once you’ve found a spot, determine if the pee is fresh or old. If it is still wet to the touch, try to blot up as much as possible using clean, dry towels (the cloth or paper variety work equally well). Once you’ve done this, or if you are dealing with an old, dried up area of urine, you need to pick the best method of cleaning based on the type of surface that is soiled.

Hard, non-porous materials (e.g., tile, sealed wood flowers, painted drywall, etc.) are pretty straightforward. Use your favorite household cleaning solution, spray it on liberally, wipe, and repeat as often as necessary until the odor is gone.

Upholstery, carpeting, and other absorbent surfaces are harder to deal with. Anything that can be run through the washer should get this treatment. If that is not an option, buy one of the many cleaners specifically designed to deal with cat pee. Do NOT use a traditional upholstery or carpet cleaner. These don’t completely get rid of the smell and can actually make future attempts at doing so less likely to succeed.

Many urine odor removal products are based on either enzymatic or bacterial processes that break down the chemicals responsible for the smell associated with cat pee. You need to thoroughly soak the area in question (including underlying carpet pads if the urine penetrated that deeply) and then let it dry. The whole process can take weeks to complete, so be patient and follow the directions on the bottle to the letter.

 

 

Dr. Jennifer Coates

 

 

Image: Natixa / via Shutterstock

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COMMENTS (20)
1
cat pee
by on 10/14/2011 03:11am

I have always had good results with ordinary white vinegar. It is very cheap, and I have found it to damage carpeting, upholstery or even oriental rugs.

2
Steamed
by on 10/14/2011 06:05am

A high quality steam cleaner that emits vapor at 240 degrees or higher gets rid of odors better than anything else. These cleaners are expensive but they're worth it. I've never checked but I imagine that they can be rented as well.

3
A.I.P.
by on 10/14/2011 07:26am

I've had good luck with Anti-Icky-Poo (A.I.P. to those in the know).

To those that know the product and the backstory, I had an occasion to speak with the real Mr. Max who invented it. The manufacturing was originally home-based and the 800 number rang in Mr. Max's library. He was a charming gentleman who got seriously excited when speaking about the product.

by on 10/23/2011 04:56am

Another vote for Anti Icky Poo! The stuff is amazingly effective. Get the hypodermic-type injector for treating underlying carpet pads if the urine has soaked through (and it probably has!)

4
Zero Odor/ Fizzion
by on 10/14/2011 07:57am

I have used all kind of stuff in past, incl Nature's Miracle. You have to absorb as much mess as possible before using something to neutralize it or yes cats can smell everything. If it is bad enough you will be taking up carpet, padding and subfloor. Not sure how to completely clean and dry padding and carpet. I think you need more to clean hard flooring esp cause pee can seep in grooves and underneath. Favorite cleaners/chemicals not so sure and the chemicals on the floor our pets walk on is a whole 'nother subject! But Zero Odor spray does eliminate odor (litter even) and Fizzion is a tablet you make a formula with for carpet. I have the Zero and recently ordered the Fizzion to try.

5
the sad part
by on 10/14/2011 11:15am

The sad part is the people that dump pets at shelters most likely wont be reading blogs on how to help their cat.

by on 10/14/2011 01:19pm

Sad indeed, doesn't that go for alot of things in this world...

6
UTI
by on 10/14/2011 02:15pm

Why are so many cats suffering from urinary tract disease?

I am guessing kibble has something to do with this.

As for spraying and marking, I had a cat who did this for behavioral reasons, and elavil really helped.

7
by on 10/14/2011 03:42pm

two pieces on cat pee in a one week period - didn't know it was possible.

:)

both bring up great points and suggestions, though, and could potentially pull an owner back from the edge of taking their cat to a shelter. keep it up!

@stefanio: kibble? as in a certain brand or grade of kibble?

i'm a dog person through-and-through, but have had a few cats in my life, too. fortunately, none have had urinary tract issues, but i'd like to know more if the issue ever comes up!

by on 10/14/2011 06:30pm

Not necessarily a certain brand of kibble (although back in the day, when I still fed cat kibble, a switch to a higher quality kibble stopped the UTIs) but there is good reason to believe that cats on kibble are not getting enough water (or protein) in their diet, and that this is linked to urinary tract infections and blockages. The site of a really cool vet:

http://www.catinfo.org/#Cystitis_

by on 10/14/2011 06:30pm

Also

http://www.catinfo.org/?link=urinarytracthealth

by on 10/16/2011 09:10pm

thank you for the responses and info, stefanio. really appreciate it!

8
Must love cats
by on 10/14/2011 06:22pm

One of my cats used to take out my down-feather blend bed pillows regularly. Once, while my head was on them. Nothing like fresh hot cat pee to wake you up! But I love the little nut so after two pricey workups that revealed nothing wrong, his vet recommended Prozac which helped a lot. The incidences of missing the box plummeted. It happens maybe 2-3 times a year now as opposed to 2-3 times a month.

I always knew he was not doing this to bug me nor was this premeditated. I still use the pillows - they can be washed.

BTW, I have three cats and four boxes (on two levels) for them.

9
pee
by on 10/14/2011 08:43pm

Two posts here about antidepressants. My question is this. Are we using a side effect of the drug that affects urination, or are these animals suffering from their equivalent of an affective disorder? There is so much literature on animal models for depression, and their amelioration with antidepressants, that I shall not go into it here. I am all for the use. I take Prozac myself. I have a cat named Prozac, because of his notable antidepressant qualities. If we are really dealing with animal affective disorders, we must have more research, and more options as to how to improve the lives of our furry friends.

I also wish to correct a typo in an earlier post on this topic. White vinegar has NOT in my experience damaged any upholstery. etc.

by on 10/16/2011 10:39pm

I appreciate your caution about the use of antidepressants and it was a last resort. But in my cats case, his marking did have a stress related component. He also had separation anxiety, and would sit at the door wailing for me all day while I was at work. It was heart breaking. The elavil really did help. But who knows -- he later became diabetic and I've heard of a connection between elavil and diabetes. I doubt it simply because there was about 5 years between the last time he was on elavil and the disease onset. But you never know.

by on 10/16/2011 10:55pm

I doubt very much that there was any connection between the elavil and the cat's diabetes. The connection is tenuous. In human medicine, at any rate, type II diabetes is more associated with some of the anti-psychotics. This may be associated with the attendant weight gain that often occurs.

It is also interesting that low-dose imipramine has long been used, successfully, as a treatment for childhood bed-wetting.

10
Out with the carpet
by on 10/14/2011 09:12pm

The best decision we ever made in keeping ourselves sane in the battle of cat pee was ripping out all the carpet in our house and replacing with the fake wood laminate product, specifically we chose Pergo at Home Depot. We put half down ourselves, then had H.D. do the rest as I was tired of waiting on the husband to finish it. It wasn't cheap so it does look pretty nice considering its laminate. After seeing it, several friends and my vet have all yanked out their carpet and done the very same thing.
With the widest planks they offered, about 8 inches, the cleanup is so easy and after 7 years it looks brand new, despite having two labs and several cats giving it the workout. It has been a lifesaver, I just wipe it with a wet paper towel. No smells or stains.
After pulling up the carpet and carpet pad and seeing all the dirt underneath, I will never live with carpet again. There is no way you can sanitize or clean it so its healthy for your pets or yourself. I encourage everyone to get rid of their carpet!

11
Hydrogen peroxide
by on 10/14/2011 11:15pm

A friend tipped me off years ago, hydrogen peroxide, the stuff in the brown bottle that is very inexpensive, is great for removing cat pee. Also works great on poop stains, vomit, and blood. For carpet or upholstery, pour it on, let it set for a few minutes, dab up as much as possible. You can also put it in a spray bottle to make it easier to apply. Once that's done, I use Zero Odor as a chaser, it is an incredible product. I've only had the peroxide fade a silk oriental rug, it has not affected carpet or upholstery, including a dark burgundy sofa we have. I did get sick of dealing with carpet so we replaced it all with tile and wood. We have 7 full-timers and also foster kittens in a separate room, so have a lot of experience with clean-up. I also second the motion on using Prozac, once we identified the frequent sprayer and started him on a tiny dose of Prozac, the problem resolved 95%.

12
cat pee odor
by on 10/16/2011 10:04pm

I have a cat that pees all over my house, JD is on meds for the problem. the best thing I found to get rid of the odor is Eliminate Extra Strength by vetschoice.

http://vetschoice.com/productinfo.php?productID=1000011


Thanks
Toniann

13
Old age, dementia
by on 10/17/2011 01:03pm

I feed a raw diet and that solved the FUS long ago. Now he is old, 20 yo, and recently began peeing outside the box. I was going to put him down but began looking at him carefully. His back legs are not as strong as they used to be so I took down the baby gate protecting the cat box, and kept the dogs out with training. I went back to clumping clay litter and changed to a better one with no perfumes, or dust, Dr. Elsey's Precious Cat Litter. In other words when your cat has some dementia, take away any barriers to keep things the same.

Yes, he has had kidney failure for years but that wasn't the problem. The problem was his dementia and failing legs. Solve that and he is fine.

And clean. I used a stink finder light. And bought a SpotBot. After cleaning with that I put Nature's Miracle in a watering can and soaked the area. Closed off doors. It took some time to take away the smell completely but it worked.

And my cat is back to reliably using his cat box.

I recommend catinfo.org. A lifesaver literally.

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About fully vetted

Jennifer Coates, DVM

Photo of Dr Coates

Image credit: Jim Piraino

...graduated with honors from the Virginia-Maryland Regional College of Veterinary Medicine in 1999. In the years since, she has practiced veterinary medicine in Virginia, Wyoming, and Colorado. She is the author of several books about veterinary medicine and animal care, including the Dictionary of Veterinary Terms: Vet-Speak Deciphered for the Non-Veterinarian. Dr. Coates also writes short stories that focus on the strength and importance of the human-animal bond, and freelance articles relating to a variety of animal care and veterinary topics. Dr. Coates lives in Fort Collins, Colorado with her husband, daughter, and various species of pets.

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