I have a paralyzed mini schnauzer who was born with back deformity and no feeling or use in her back legs who, as a result, can not pee on her own, pooping is no problem. She's 3 1/2 years old now, had her since 10 weeks, and I express her 3-4 times a day and have so far, knock on wood, not experienced any bladder infections. I used to bring her urine in for sampling at the vet every few months to be on the safe side, but noticed these UTI testing strips at Walmart for testing for UTI's in people. The brand is AZO Test Strips, a urinary tract infection test. There were three ina box and one box was like $15 or so. I haven't been to the vet yet to see if these work on dogs as well as people, but i wondered if anyone here had heard of them, or had used them for their dogs or cats. If they work, I would save a little money because the vet's is like $25 each time to test, and since she's not had an infection yet, I haven't been getting her tested as often this past year. So if anyone's used them or heard of them, please reply and let me know what you think.