Pet Body Condition Score from Photo
Upload a top-down or side-profile photo and get an educational Body Condition Score on the veterinary 1–9 scale, plus an action plan.
Veterinary Pet Body Condition & Morphometric Analyzer
Analyze top-down and side photos alongside palpation markers to determine your pet's exact WSAVA Body Condition Score, ideal weight target, and daily calorie plan.
Quick Clinical Examples (1-Click Test):
Upload Top-Down Photo
Stand above pet, looking down at spine & waist
Upload Side Profile
Eye-level with pet standing naturally
Veterinarians teach owners the Knuckle Test using their own hand:
- Back of flat hand = Ideal (BCS 5): Run your fingers across your flat knuckles. You can feel bones easily without pressure.
- Clenched fist = Underweight (BCS 1–3): Run your fingers over the sharp raised knuckles of a tight fist.
- Palm of hand = Overweight (BCS 7–9): Feel the fleshy pad below your thumb. If your pet's ribs feel like this, they have excessive adipose padding.
- Ribs & Bones: Highly prominent, visible from distance; zero palpable fat layer.
- Waistline: Extreme hourglass indentation with hollow sunken flanks.
- Clinical Risk: Muscle loss, hypothermia vulnerability, immune suppression.
- Ribs & Bones: Easily palpable with light hand sweep; feels like flat knuckles.
- Waistline: Proportional hourglass waist visible behind ribs; clear abdominal tuck.
- Clinical Standard: Proven +1.8 to 2.5 years longer lifespan and lower osteoarthritis rate.
- Ribs & Bones: Palpable only with deep pressure or completely obscured under thick fat.
- Waistline: Absent or bulging outward like a barrel; pendulous sagging belly fat.
- Clinical Risk: 4x feline diabetes risk, cruciate tears, cardiac strain, chronic inflammation.
How it works
Computer Vision Morphometrics, 9-Point BCS Scoring, and Adiposity Mapping
Visual companion animal body condition scoring combines computer vision neural networks with the standardized WSAVA 9-Point Body Condition System (BCS). Over 59% of dogs and 61% of domestic cats are overweight or obese, accelerating the onset of osteoarthritis, diabetes mellitus, cardiopulmonary distress, and reduced life expectancy.
Under clinical veterinary nutrition standards established by the World Small Animal Veterinary Association (WSAVA) and the Association for Pet Obesity Prevention (APOP):
The 9-Point Morphometric Classification Matrix: - BCS 1–3 (Underweight / Emaciated): Ribs, lumbar vertebrae, and pelvic bones easily visible; severe abdominal tuck - BCS 4–5 (IDEAL BODY CONDITION): Ribs easily palpable with minimal fat; hourglass waist visible from above; abdominal tuck present - BCS 6–7 (Overweight - 10–20% Excess Fat): Ribs palpable with difficulty; waist barely discernible; thick lumbar fat padding - BCS 8–9 (Obese - 30%+ Excess Fat): Massive fat deposits over spine/tailbase; distended rounded belly; zero waistline
The Dual-Angle Photo Standard for Vision Analysis
To accurately score body condition through imaging:
- Dorsal (Aerial) View: Photograph looking straight down at the standing pet's back from above to measure the waistline taper behind the ribs.
- Lateral (Profile) View: Photograph from the side at eye-level to measure the abdominal tuck sloping upward from the ribcage into the groin.
Calculate target weight loss calories with Pet Feeding Planner, manage low-calorie rewards using Training Treat Planner, evaluate BMI metrics via Pet BMI Calculator, and explore obesity research at APOP.
Examples
- Slim tuck visible, ribs easy to feelBCS 4–5/9 (ideal)
- No waist from above, wide backBCS 7/9 (overweight)
- Ribs, spine and hip bones visibleBCS 3/9 (underweight — vet visit)