Hi all. I have a 15 month old male neutered cat who up until January this year gave me no trouble at all. But since January have had an increasingly frustrating problem with him due to innapropriate urinating in the house. My cat goes outside and has done since he was about 6 months old and before Jan this year did all his business outside and never did it indoors (after he was litter trained as a kitten). In January he urinated in the house and I noticed some blood in his urine so took him to the vets who said it was cystitis as they tested his urine etc and found nothing else. So he had two injections and the problem seemed to have cleared up. A few weeks later he urinated in the house again and has consistantly urinated in the house in two certain places since, he does it at least twice/three times a week. I took him to the vets two weeks ago with the problem they did all the tests in his urine, blood etc and found nothing untoward. I am just becoming really frustrated with him as he keeps doing it. Im just worried he's in the habbit of doing it he thinks it's fine too. I have caught him a few times and yelled a loud No! and quickly put him outside but this doesn't deter him from doing it again. Is he just being extremely lazy!? we have a big garden which was fine for months for him but now he feels the need to do it indoors too. Its just stressful waking up wondering if he's peed clearing up urine early morning before work is no fun!. He used to be free to move about the house at night but since this problem started Ive had to keep him in the kitchen at night (with cat flap to outside) as I can't trust he won't pee on the carpet. Is there anything I can do to stop him? he seems to have two favoured spots a corner of the hall and right next to the kitchen door. Any ideas as to what I can do to deter him from those spots? Im really at my wits end with this problem any help would be great.