Your pet’s senior stage is commonly when underlying diseases become evident. It is important to monitor your pet’s health during this time to check for underlying diseases and keep your pet happy and healthy. At Pet Health Hospital, the senior life stage it not the same for each pet. Smaller dogs’ senior stages might start at 11 years of age, while giant-breed dogs may start their senior life stage as early as 8 years. The Canine Health and Feline Health Lifetime Care Programs will use your pet’s size to determine when senior care should begin. We will also use your pet’s breed to determine whether we can use painless and simple screening procedures to diagnose and treat conditions as early as possible.