Q. There are a couple of drips of blood outside of my cats litterbox. The vet said there was no infection and bloodwork was clean. Any ideas?
DR. JENNIFER LADD, DVM
A. I would be suspicious of crystalluria. Cats are prone to urinary crystals that can lead the way to bladder stones. Usually a prescription diet that alters the pH of the urine is enough to dissolve the crystals. Since your cat is a male this has the potential to be an emergency. If stones have formed, they could block his urethra, preventing him from urinating and potentially lead to bladder damage or rupture. I would have your vet ensure that he is able to urinate, and confirm crystals on a urinalysis.