A. I would be suspicious of crystalluria. Cats are prone to urinary crystals that can lead the way to bladder stones. Usually a prescription diet that alters the pH of the urine is enough to dissolve the crystals. Since your cat is a male this has the potential to be an emergency. If stones have formed, they could block his urethra, preventing him from urinating and potentially lead to bladder damage or rupture. I would have your vet ensure that he is able to urinate, and confirm crystals on a urinalysis.
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