Mine go once a year for vaccinations and health check. Jaffa will be 9 in a month so might start going twice a year for check ups. He had a blood test recently prior to a dental examination and something to do with his kidneys was a little high. Vet said not to worry and that it might just be due to dehydration as a result of fasting for the dental but he will have a further blood test when he goes for his vaccinations in September. If there's any chance of him having a problem with his kidneys I want him checked regularly so that it can be picked up before he starts showing symptoms.