Calculadora de Qualidade de Vida do Cão
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
HHHHHMM: soma dos 7 critérios /70; aceitável ≥ 50%
About this calculator
The Dog Quality of Life Calculator uses the HHHHHMM scale, which assesses seven essential criteria: Hurt, Hunger, Hydration, Hygiene, Happiness, Mobility, and More good days. Each criterion is scored from 1 to 10, where 1 is the worst and 10 is the best. The total score ranges from 7 to 70, and a score above 35 indicates acceptable quality of life. This tool helps pet owners objectively evaluate their dog's well-being, especially in cases of chronic illness or advanced age.
How it works: the owner assigns a score for each of the seven criteria based on daily observation of the dog. For example, 'Hurt' assesses whether the dog shows pain when moving or resting. 'Hunger' looks at appetite and ability to eat. The sum is divided by 70 to get a percentage; values of 50% or higher are considered acceptable. The scale is widely used by veterinarians to monitor treatment progress and make decisions about palliative care.
When to use? This calculator is recommended for dogs with terminal illnesses, elderly dogs with multiple comorbidities, or those recovering from complex surgeries. It helps in difficult decisions, such as the need for euthanasia, by providing a numerical basis for discussions with the vet. It can also be used periodically to track response to treatments or adjustments in care routines. Honest assessment is crucial, preferably with professional support.
Common precautions: the scale is subjective and may vary according to the owner's perception. It is advisable to have more than one person evaluate the dog to reduce bias. Additionally, the score does not replace veterinary follow-up; it is a complementary tool. Be careful when interpreting results: a score above 35 does not necessarily mean the dog is well, as each criterion is equally weighted, but some may be more critical (e.g., severe pain). The scale should be used as a guide, not a definitive diagnosis.
Frequently asked questions
What does each criterion of the HHHHHMM scale mean?
Hurt: physical discomfort. Hunger: appetite and ability to eat. Hydration: water intake. Hygiene: cleanliness of coat, nails, and skin. Happiness: signs of joy and interaction. Mobility: ability to move. More good days: proportion of days with well-being.
What is the minimum score for acceptable quality of life?
The minimum score is 35 out of 70, or 50%. Below that, quality of life is considered compromised, and it may be necessary to discuss palliative care or euthanasia with the veterinarian.
Can I use this calculator for healthy dogs?
Yes, but it is most useful for dogs with chronic illnesses or elderly dogs. In healthy dogs, the score tends to be high and may not provide significant information.
Does the calculator replace a veterinary consultation?
No. It is a support tool, but professional evaluation is essential, especially for decisions about euthanasia or treatment changes.
How can I ensure a more accurate assessment?
Involve more than one person, such as family members or the veterinarian. Observe the dog at different times of the day and be honest about the signs presented.