A. If your cat has not had comprehensive bloodwork in the past six months, I recommend getting that dove before deciding anything further. With a good appetite and weight loss, diabetes and hyperthyroidism are the first two things that come to my mind. Both are treatable conditions that, if properly managed, can give you and your cat more happy time together. The inappropriate urination could be attributed to a urinary tract infection, difficulty in getting into or out of the litter tray because of arthritis, or sometimes it could be behavioral. Cats like things to remain the same and if there has been any unusual activity in your house lately, or any changes, this can cause a cat to stop using the little box as well. I recommend getting your cat in to see your vet for an exam and labwork to determine the status of his blood chemistry, hormonal levels and blood glucose and any urinary infections.
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