2 vets have said there is nothing wrong with my cat but he no longer uses a litter box. I put puppy pads down and got a pheromone diffuser but nothing seems to work what else can I do. I don't want to rehome him and see no reason to put him down.

I clean the litter box multiple times a day and I woke it down ever other day but i'm going to try using dirt thanks for the suggestion.

If ur cat is an indoor and outdoor cat Try putting soil in ur litter box instead of litter i found thats cats that go out side start to prefer dirt...and also alot of cats will not go in the box if its to dirty for there liking. Just my thoughts