There are two main reasons that cats go outside the litter box. The first is stress, which often causes them to mark areas around the house out of a feeling of insecurity. The second is the box itself, which they either have an aversion to or prefer to replace with a more convenient or luxurious location.
Read the full article with additional tips on how to solve inappropriate cat urination problems here
Courtesy of SFgate.com and Sophia Yin, DVM, San Francisco Veterinary Specialists: www.sfvs.net and www.drsophiayin.com.