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On occasions your veterinary surgeon may want to collect urine directly from the bladder. This is most easily achieved by passing a needle into the bladder. It sounds a bit unpleasant but it’s surprising how well the majority of cats tolerate the procedure. The cat is positioned on its back or side and the skin in the area over the bladder is shaved and disinfected. A fine needle attached to a syringe is passed through the skin, into the abdomen and into the bladder. This method avoids the risk of the urine sample being contaminated.