Feline Idiopathic Hypercalcemia

Hi everyone! We’ve been keeping a secret, well, a few people knew. Sammy has something called Idiopathic Hypercalcemia which caused 4 stones to form in his bladder. He had surgery on Friday to remove them because they could have gotten in his urinary tract and caused a blockage- that is life threatening. I didn’t want to write about it because it seems like every time I write about one of my cats being sick, well, you know what happens and I didn’t want to jinx him.


Poor kitty has to wear a cone of shame for a week. He wanted to look good for the 4th so we added a little patriotic fabric to it.

This has been going on for quite a while, it took many tests to confirm that it is ideopathic (meaning no known cause). There are several causes of hypercalcemia including kidney disease and several types of cancers. When his basic blood work came back with elevated calcium, the next step was an ionized calcium blood test which also came back with high levels. His parathyroid was also tested as that is another cause, but that was fine.

His urine was checked for kidney disease ( even thought the blood work was good). That came back with sugar and protein so I had to get a sample from home. It took me weeks to catch him in the act and get that sample. Luckily, that sample was fine, the original elevation in protein and glucose was from the stress of being at the vets.

The next step was the ultrasound. Thankfully, no cancers were detected, but the 4 stones were. They were not an emergency and may have never blocked, but I wasn’t going to take that chance. There is a board certified surgeon that goes to our vet hospital once a month so I opted for that. I almost canceled because I was so worried of complications, but the surgeon assured me there was only¬† 2 % chance of complications which put my mind at ease. I still felt bad about making a cat that is fine have to be sick for a while.

Sammy wants to show everyone his incision so close your eyes if you are squeamish.


He is on a special food now that is low in calcium. When he goes in to get his incision checked, the vet will test his calcium levels. If they are better, then he will only need the food, if not, he may need medication as well.

I can’t wait until he is back to sleeping on my head again. He has been an excellent patient and tolerated being crated and coned. Has anyone ever had a cat with idiopathic hypercalcemia?

And before we go, Stunning Keisha reminded Phoebe that today is Bikini Day!