I have a cat that is diabetic but sometimes pees on the floor....

What can I do for my cat. He is diabetic. We did have problems of him peeing on the floor. But what can we do about that. My cat goes into my bathroom peeing on the floor. But we have been keeping the door shut from my bathroom to where he can't go in there peeing on the floor. I am not liking the door closed this much. What can I do about that? My mom wants it shut so our cat won't go into the bathroom peeing on the floor. What could we do much more on this? What should I do about my cat? Is there anyway to help that? Help me please.

get a cat diper, or take it to the vet im sure there is something they can do, and im not sure if they have cat dipers but you could try and ask I guess hope this helps