Aging in dogs covers the impact of aging in the domestic dog (Canis lupus familiaris), common medical and clinical issues arising, and life expectancy.
As with humans, advanced years often bring changes in a dog's ability to hear, see and move about easily. Skin condition, appetite and energy levels often degrade with geriatric age, and medical conditions such as cancer, renal failure, arthritis and joint conditions, and other signs of old age may appear.
The changes in care often required by an older dog may lead a non-experienced owner to release the animal to a shelter or rescue organization. Non-profit groups such as Old Dog Haven have sprung up in response to the growing need for senior dog rescue.
The aging profile of dogs varies according to their adult size (often determined by their breed): smaller dogs often live over 15–16 years, medium and large size dogs typically 10 to 13 years, and some giant dog breeds such as mastiffs, often only 7 to 8 years. The latter also mature slightly older than smaller breeds - giant breeds becoming adult around two years old compared to the norm of around 12–15 months for other breeds.
Read more about Aging In Dogs: Terminology, Aging Profile, Life Expectancy By Breed, Effects of Aging
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