Assess your dog's quality of life using the HHHHHMM scale—a veterinary tool for evaluating Hurt, Hunger, Hydration, Hygiene, Happiness, Mobility, and More good days than bad.
Last updated: March 2026
Instructions: Rate each category from 0 to 10. Higher scores indicate better quality of life. Be honest and objective in your assessment.
The HHHHHMM quality of life scale is a veterinary assessment tool developed to help pet owners and veterinarians evaluate whether a dog is experiencing a good quality of life, particularly when facing chronic illness, advanced age, or terminal disease. The acronym stands for Hurt, Hunger, Hydration, Hygiene, Happiness, Mobility, and More good days than bad—seven critical factors that together paint a comprehensive picture of an animal's well-being.
Created by Dr. Alice Villalobos, a renowned veterinary oncologist, the scale provides an objective framework for one of the most difficult decisions pet owners face: determining when medical intervention improves quality of life versus merely prolonging suffering. Each factor is scored from 0 (poor/severe impairment) to 10 (excellent/no impairment), with a total possible score of 70 points. Scores above 35 generally indicate acceptable quality of life, while scores below 20 suggest the animal may be suffering and humane euthanasia should be seriously considered.
This tool is not a substitute for veterinary consultation but rather a structured way to track changes over time and facilitate meaningful conversations with your veterinarian about pain management, treatment options, palliative care, and end-of-life decisions. Regular reassessment—weekly or even daily for critically ill pets—helps owners recognize patterns and make informed, compassionate choices in their dog's best interest.
Assessing a 14-year-old Labrador with arthritis and mild heart disease:
Managed with daily pain medication; some stiffness in mornings but comfortable most of the day.
Good appetite; eats full meals twice daily without assistance.
Drinks normally throughout the day; gums are moist and pink.
Occasionally has accidents indoors due to mobility issues; needs help with grooming.
Still wags tail when family comes home; enjoys gentle petting but less playful than before.
Needs help getting up; walks slowly; uses ramp for stairs; manages short walks.
About half the days are comfortable; some days show more pain and fatigue.
Assessment: Acceptable quality of life
This dog is managing well with current care. Continue pain management, consider physical therapy for mobility, and monitor closely for any decline. Reassess weekly.
For healthy senior dogs, monthly assessments track aging trends. For chronically ill dogs, assess weekly or even daily. Frequency depends on health status—the goal is to catch declining trends early and adjust care accordingly.
There's no magic number. Scores below 20 suggest poor quality of life, but the decision involves many factors: response to treatment, prognosis, your family's capacity to provide care, and most importantly, your veterinarian's professional assessment.
Often yes! Pain medication, appetite stimulants, physical therapy, assistive devices (ramps, harnesses), dietary changes, and environmental modifications can significantly improve scores. Work with your vet to optimize each category.
No. While often used for terminal illness, it's valuable for any chronic condition—arthritis, diabetes, kidney disease, cognitive decline. It helps identify which areas need intervention and tracks whether treatments are working.
That's normal. Keep a written log to identify patterns. Are bad days becoming more frequent? Are good days getting shorter? Trends matter more than individual scores. Share your log with your veterinarian.
It's hard. Ask someone who knows your dog well (family member, close friend) to independently score. Compare notes. Also photograph or video your dog weekly—reviewing footage can reveal gradual declines you've unconsciously adapted to.
This scale helps prioritize quality over mere survival time. A longer life isn't better if it's filled with suffering. The goal is maximizing good days while minimizing suffering, and recognizing when that balance shifts irreversibly.
Absolutely. Bring your completed assessments to appointments. Veterinarians can help interpret scores, suggest interventions, provide prognostic information, and support you through difficult decisions with professional expertise and compassion.
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