I took my 9 year old cat, who has gotten blocked in the past, to the vet because I thought he was again blocked. Turned out he wasn't; he was just holding his pee. He does this a lot, and refuses to use the box. I have to let him out to pee. Anyway, the vet did a urinalysis, and told me he has a very high gravity level and should be put on Hills Kidney prescription diet. Anyone know what a high gravity level is? Did this come from him holding in his pee too long? I have 2 other cats-females-and I wonder if that prevents him from using the box. I put out extra boxes, but he won't use them. Probably because the females will eventually pee in them.
RUTH
RUTH