Urinating outside the litter box can be a marking behavior in cats, but it could also be triggered by health issues and certain factors in the cat’s immediate environment. Getting down to the bottom of the problem can go a long way in finding the right solution to the problem.
There are a number of health problems that can cause cats to pee outside the litter box. These include Feline lower urinary tract disease (FLUTD), kidney disease, and diabetes among others. Cats suffering from cystitis (an inflammation of the bladder) often feel the urge to pee more often and sometimes they blame the litter box for the pain and discomfort they are feeling and tend to look for other places to pee in.
Cats use their urine to mark claimed territory. Spray marking differs from simple peeing. Cats generally spray urine on vertical services while peeing simply involves squatting on a horizontal surface. Urine spraying is more common among cats that are not neutered. For more details visit your vets care.