My cat kept peeing on the sofa... she is 1-1/2 and had never done that before. I first thought it was behavioral bit then my mom said she might have a bladder infection. I collected a urine sample and took her to the vet with me. They didn't need to see her at all they just ran the sample. It came back positive for a bladder infection. They gave me medicine to give to her for the next 7 days, 2 times per day.