As a dog ages, several changes may occur besides a greying muzzle. Senior dogs have more health concerns than younger dogs, but they can still make playful, loving companions.
Harmony Peraza, a veterinary technician and the study subject manager for the Texas A&M College of Veterinary Medicine & Biomedical Sciences’ Dog Aging Project, discusses the most common health conditions that may arise in a senior dog.
While there is some variation among breeds, a dog is typically considered a senior at 8 years old. Large dogs may age faster, becoming seniors as early as 6 or 7, while smaller dogs may not start showing signs of age until they are 9 or 10.