Feline urine marking is a behavior in which cats mark a location with urine to notify other cats of their territory. Often it occurs near door and windows as a way to communicate to neighborhood tomcats wandering through the yard. Although this is a normal behavior in cats, most owners consider it unacceptable when it occurs in the house. Any cat can exhibit marking behaviors, but it tends to occur in male cats that have not been neutered.
Island Bird Cat & Dog Vet Group