So I posted about our cat peeing in the bathtub, well it keeps happening.  And the other week he peed in the corner of our LIVING ROOM, and then he did it again on Sunday while we had company over.  (The thing is, he started the peeing in the tub thing BEFORE he ever got fixed.) 

My uncle and aunt were over, and they told me that it could be either these crystals OR the fact that we have 2 cats sharing 1 litter box.  They've had tons of cats over the years, one of their males went through the urinary crystals 3 or 4 times.  Their current vet told them that dry food can cause these crystals.  The vet said to only feed them wet food and change the water several times a day.

Has anyone else been through any of this?

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I've never gone through that with peeing but I know when the litter box gets even a little bit full, my cat will poop on the floor. I would probably take him to the vet - he may have a urinary tract infection? Does he have any other symptoms? Is he struggling to pee or not going as often? How much is he eating and drinking??

Not at all...I have two cats that share a litter box, but I'm super anal about cleaning it the moment I see something in there. AND they eat dry food...hope he stops soon!!

Have you brought him to the vet for this yet?  Have they run any tests?  Usually when they don't use the litter box it is not a behavioral problem but a sign of something physical.  It hurts them to use the litter box and they associate that pain with it, so they find other places to go.  I have recently learned that basically every change in behavior can be a sign of something physical not being right.  

My family has had two cats with urinary crystals.  Unfortunately with the first cat, we thought it was a behavioral problem.  He seemed completely fine and the only thing that was different was that he would "spray".  Eventually the crystals caused a blockage, we did have surgery to remove the blockage, but the stress of the surgery was too much for him and he passed away that night.   

The cat my parents got after him also developed crystals.  But this time my mom knew a lot more about it and at the first sign that something was wrong brought him to the vet.  In his case, he was excessively licking himself.  Now he just has to be on a special food and she just makes sure that he is using the litter box everyday since sometimes stress can cause these type of things to reoccur.  He has been completely fine for four years now, so if you catch it early enough, it's definitely treatable.    

Feeding wet food will help, but some cats are just more predisposed to develop crystals.  

Hope you get to the bottom of it soon and everything works out.  

We took Pabs to the vet on Saturday and they ran tests and everything came back ok.  So we think it's behavioral vs. medical.  We bought this stuff to sprinkle in the litter box that is supposed to correct the problem.