#10 Define the Problem
The first thing you need to do when you discover pee where it doesn’t belong is determine whether it is the result of spraying or inappropriate urination. Spraying is a result of cats marking their territory, and is generally just a splatter, whereas inappropriate urination will be a larger puddle.
#9 Tackle the Problem Quickly
You will want to address any urination outside of the litter box quickly, before it becomes normal behavior for your cat. If your cat is spraying, try making it feel more secure in its territory, as that is often why cats get possessive. In a multi-cat household, it may help to provide separate living areas for each cat.
#8 Thoroughly Clean the Mess
Be sure to thoroughly clean all areas where your cat has peed outside the box. You really want to be sure you’ve eliminated the odor, not just for your own sake, but so the smell doesn’t draw your cat back to that same spot.
#7 Add an Additional Litter Box
One litter box is often just not enough. The general rule of thumb is one box per cat, plus an extra one. Think about it – if you were on the second floor of your house, would you want to run all the way downstairs to use the bathroom? Neither does your cat. Making it convenient for your cat to use the litter box will usually avert problems.
#6 Address Litter Box Location
Think about where you have the litter boxes located. If you have multiple stories, you’ll want at least one on each floor. If your litter box is too tucked away, somewhere inconspicuous, your cat may not bother to go find it. If your cat keeps peeing in the same spot despite your best efforts, try moving the litter box over that spot, and then slowly moving it back to where you want it.
An enclosed litter box may fit nicely within your decorating standards, but your cat may not agree. Enclosed boxes can be small, dark, smelly and difficult to turn around in – not conducive to cats doing their business. You will also want to make sure the sides of your litter box are not too high for the cat to easily step over – especially as the cat reaches old age.
#4 Clean Your Litter Box Regularly
A dirty litter box is one of the first things that will send a cat peeing elsewhere. Cats are very clean creatures by nature. Would you want to go walking barefoot through your cat’s litter box? Well, neither do they. Be consistent about cleaning out the box and changing the litter.
#3 Check the Type of Litter
Heavily perfumed litter may seem the better choice (who wouldn’t want to smell perfume rather than a dirty litter box?), but cats tend to disagree. They also like to stick with the familiar, so if you adopt an adult cat, it may urinate outside the litter box if you switch up the standard, non-perfumed litter. Studies have shown that amongst cats, the all-around favorite litter type is a loose, clumping, unscented clay litter containing activated charcoal.
#2 Observe the Social Dynamics
Conflicts between multiple cats, or the introduction of a new cat, may cause inappropriate urination. Occasionally, the case may be that your cats got into an altercation in or near the litter box and it has left one of them with associated bad memories.
#1 Consult Your Veterinarian
If inappropriate urination has become an issue with your cat, the most important thing you can do is make an appointment with your veterinarian. Your cat’s doctor will perform a physical exam and urinalysis to determine if the problem is medical. Urinary tract infections and kidney failure are just some of the common health issues that either cause a cat to produce more urine, or add an increased urgency to urination. If your cat is given a clean bill of health, you can then move on to addressing environmental or behavioral issues.(courtesy of petmd.com)