A scale is not a verdict, and it will never love your pet the way you do. It is simply a steadier place for your judgment to rest, so that fear does not decide for you and denial does not either.
Why a quality of life scale helps
When you look at a pet you adore, love and fear can pull your view in opposite directions. Some days you see only how far they have declined, other days you cling to a single good moment. A quality of life scale gently steadies that view by asking you to rate the specific things that make up daily comfort, one at a time, and then to look at the whole.
The most widely used version is the HHHHHMM scale, created by veterinary oncologist Dr. Alice Villalobos. Its name comes from the first letters of the seven areas it measures. You score each from zero to ten, then add them up to see where things truly stand.
The seven factors of the HHHHHMM scale
Hurt
Is your pet's pain well controlled? Adequate pain relief, including the ability to breathe comfortably, is considered the most important factor of all.
Hunger
Is your pet eating enough on their own? Refusing food, or needing to be force fed to get any nutrition, weighs heavily against comfort.
Hydration
Is your pet drinking and staying hydrated? Ongoing dehydration, or needing fluids given under the skin, is a sign the body is struggling.
Hygiene
Can your pet stay clean and dry? A pet who cannot move away from soiling, or who develops sores, loses dignity and comfort.
Happiness
Does your pet still show joy? Interest in you, in favorite people, toys, or surroundings, tells you whether life still holds pleasure.
Mobility
Can your pet move well enough to do what they need to? Being unable to stand, walk, or get up without help affects comfort and safety.
More good days than bad
When bad days begin to outnumber good ones, the balance has tipped. This overall view is often the clearest and gentlest measure of all.
Score each factor honestly from zero to ten, where higher means better. A higher total suggests your pet still has quality of life worth supporting, while a low total suggests suffering may be outweighing comfort. Use the number as one honest input, alongside your own eyes and your veterinarian's guidance.
Walk through it one gentle question at a time
Our quality of life calculators guide you through the key signs, one question at a time, and give you a clear score to reflect on and share with your veterinarian.
This guide explains a common assessment tool and is not a substitute for advice from your veterinarian, who can weigh your pet's medical picture with you.
