My cat's urine smells so strong that it drives me out of the house. I had several cats before and none of them had this problem. We've changed several litters but none could eliminate the odor. Is something wrong with my cat?
yes, he could have a urinary tract infection. Ask the vet for a test kit to bring home. It'll show the ph of the urine and tell them if something is going on.
Thanks. Can there possibly be other reasons if this is not an infection. I hope it's not coz he's otherwise fine, just this smell bugs me.
Poor diet can contribute to the smell in my opinion... and cause health problems like alfinnlay said.

Sorry for bumping this old thread but I've finally gotten rid of the smell of cat urine from my home and I just have to share this with you guys.

One of my 2 cats (both neutered males) had taken to painting all of my walls, furniture, and anything else he could reach. I was horrified when I got a UV light. He never did that in all of the 9 years I've had him and didn't when I got him a buddy (they love each other and did so right away) but when a strange black cat started showing up outside both of my cats went nuts and the older one (9) started his wall painting, as well as the curtains out in the kitty room. I couldn't keep up with it.

My cats are indoor cats so it's not like the stray is actually going to get in here but they both hate him (and he is neighbor's cats hate him too). I've tried cleaning with a pet urine enzyme and then spraying some "No More Spraying" but that hasn't worked. He's a sneaky little bugger too; he waits until he thinks I'm not looking and then does it. He's learned that the minute I see him backing his butt up to something he gets yelled at.

It wasn't until I found cat Spraying no more that I was able to finally get rid of this tiresome behavior.

Now my house doesn't smell like a litter box anymore Emotion: smile

I hope you guys don't mind me sharing this. Cheers!