Found this does she have more than one cat?
Do only male cats spray?
No, all cats, male or female, neutered or not, may spray, however, urine marking is most common in un-neutered male cats. It is not usual for female cats to spray, but it can happen if she is in heat and leaving her scent to attract a male cat. It can also be a problem when there is overcrowding of cats in a household.