Your cat starts urinating more frequently and often does so outside the litter box, straining while he relieves himself. He also has started over-grooming “down there” and may even have blood in his urine. Is it a urinary tract infection? Nope. The vet checked for that. A bladder stone? No, not that, either. In fact, the doctor has screened for a number of conditions that fall under the umbrella of Feline Lower Urinary Tract Disease (FLUTD), and all the tests came back negative. So what is it? Is your cat just being difficult?