Help -- My Cat Urinated on the Bathroom Rug

An indoor cat who is urinating anywhere "out of litter box" can be very frustrating. This isn't something that cats do without reason: it could be a medical problem (infection, crystal formation), a behavioral problem, or a combination of both. The goal of this FAQ is to help identify and differentiate feline urinary medical and behavioral issues.

Related Reading from the Cats Guide:
He Peed WHERE?

_{Photo "Jaspurr and Joey check out their new litter box" © Franny Syufy}