My cat Ansel is going to be 8 years old in October. He had his very first UTI earlier this year. He was put on S/D food along with antibiotics to help get all the crystals dissolved....then was switched to C/D food for the rest of his life. One of the doctors told me that if he got just one kernel of another cat's food, it could cause his PH levels to spike. Well, Ansel is a master at stealing the other cat's food. There are 2 other types of prescription food being served among the other 3 cats. The stealing factor, along with the fact that he will often lick his genital area after he's urinated had me wondering if he was coming down with another infection. He licked alot when he had the first one. So I dropped him off yesterday at the vet's office and picked him up after work. I was told they would call with the results on the next day, which was today. A little history on the office visit. I had previously called them and asked how they obtained a sterile urine sample from the cats.....person answering the phone said she didn't know....so I asked her if she could find out for me. She said they would put a catheter in his penis and collect different samples throughout the day. When I got there to drop him off, I asked if he would be sedated and was told yes. When we got home last night, Ansel walked over to one of the litter boxes and then walked away. He then went into the laundry room, where there are 3 boxes. I peeked in and saw him in one of them and he was urinating. I walked in to watch him....he peed and peed and peed....must have been for about 20 or more seconds. As soon as he was done, I pushed him out of the way to look. There was (very obvious to me) blood in the urine. Because he released so much urine (he must have been holding it all day at the vet) it took a few seconds for it to soak into the litter and it was pooled on top. As soon as it soaked in, you could no longer see the red in it. I did dab the top of the pile with a piece of toilet paper and it came away pink. I asked my mother about this and she thought that the blood might be a result of having the catheter in. So my plan was to mention in to the vet when they called today with the urinalysis results. I got to looking at my invoice. There was no mention of a catheter or the sedation. There was something called cystocentesis. I didn't know what this was, so I looked it up. It is the alternate procedure for obtaining a sterile urine sample. They go directly into the bladder with a small needle and withdraw urine into a syringe. I knew of this method...just didn't know what it was called. So my question is this? Is there was no catheter in his penis, why was there blood in his urine. They called with the results.....no infection, no bacteria. Someone at the front desk called with the results and I told her about the blood. She had the doctor call me back. I told him what happened....he reiterated that there was no infection found. So where is the blood coming from I asked? He said it's not coming from his bladder.....maybe there is a problem within the penis itself. He told me to keep watch over him for a couple days. If it clears up, great. If not, he said I could bring him back in and they could do two things to see if there is a problem. One was something he said that I had never heard of and I can't remember the word. When I asked what it was, he mentioned something about pulling back the sheath on his penis to inspect the tip to see if there was some obvious problem. The other thing was to put a catheter in to see if he had any bumps of any kind in the urethra. If you've read this far, has anyone ever heard of a cat NOT having a UTI and passing blood in his urine? Any ideas?