Male cats and I am assuming your cat is a male as you refer to the cat as him, are prone to urine crystals and bladder stones. I suggest putting him on a good dry food especially formulated for Urinary tract / bladder health for your cat. There are several good ones ask your vet which one they suggest. I had a male cat that was very prone to bladder stones and crystals once his food was changed all the UTI's stopped, male cats for some reason are more prone to it than females. Here are some suggested dry foods for your cat, also you should avoid high fish content in the food as it can cause more harm than good. Good luck home he feels better soon.
Cat Foods for Urinary Health
Cat Foods for Urinary Health
- Royal Canin Veterinary Diet Feline Urinary SO Canned Cat Food. ...
- Pro Plan Focus Adult Urinary Tract Health Formula Canned Cat Food. ...
- Hill's Prescription Diet c/d Multicare Feline. ...
- Wysong Uretic Feline Diet Dry Cat Food. ...
- Purina One Cat Adult Urinary Tract Formula Cat Food...(not my favorite but if you can't afford the others its better then not feeding a specialty cat food for urinary health.)