What is body condition score?
Updated By PetymFacts checked against official sources on
Quick answer
A body condition score (BCS) rates a pet's body fat by look and feel, usually on WSAVA's 9-point scale: 1 is emaciated, 9 is severely obese, and the ideal sits around 4 to 5. You check how easily the ribs can be felt, whether there is a waist from above, and whether the belly tucks up from the side.
Also called BCS, body condition scoring, 9-point body condition score, muscle condition score.
Key facts
- WSAVA's charts score dogs and cats from 1 to 9, from under ideal through ideal to over ideal. WSAVA Global Nutrition Committee
- At an ideal score of 5, a dog's ribs can be felt without excess fat, a waist is seen behind the ribs from above and the belly tucks up from the side. WSAVA Global Nutrition Committee
- At 8 or 9, a dog's ribs cannot be felt under heavy fat, or only with firm pressure, and there is no waist. WSAVA Global Nutrition Committee
- WSAVA's cat chart notes that a score of 6 out of 9 may be acceptable in some cats, especially older cats. WSAVA Global Nutrition Committee
- A pet can have significant muscle loss while overweight, so WSAVA advises assessing muscle condition score as well as BCS at every visit. WSAVA Global Nutrition Committee (chart by Tufts University)
What does each body condition score look and feel like?
A summary of WSAVA's dog chart. The cat chart uses the same idea, with the abdominal fat pad as an extra marker.
| Ribs | Waist and belly | |
|---|---|---|
| 1 to 3: under ideal WSAVA Global Nutrition Committee | Visible, or easily felt with no fat; spine and hip bones show | Obvious waist and a sharp tuck |
| 4 to 5: ideal WSAVA Global Nutrition Committee | Easily felt, with a thin covering of fat | Waist visible from above; belly tucked up from the side |
| 6 to 7: over ideal WSAVA Global Nutrition Committee | Felt with slight excess fat, then only with difficulty | Waist faint or barely visible; fat building at the base of the tail |
| 8 to 9: obese WSAVA Global Nutrition Committee | Not felt under heavy fat, or only with firm pressure | No waist and no tuck; fat on the spine, neck and limbs; belly may hang |
WSAVA Global Nutrition Committee charts, June 2025. Your vet's assessment comes first.
How do you check your pet's body condition at home?
It takes a minute, and works on a Labrador, an indie or a cat. Do it once a month and note the result.
- Ribs: run your flat hands along the chest. You should feel each rib under a thin layer of fat, without pressing. WSAVA Global Nutrition Committee
- Waist: stand over your pet and look down. There should be a visible narrowing behind the ribs. WSAVA Global Nutrition Committee
- Tuck: look from the side. The belly should rise from the chest towards the back legs, not sag or hang. WSAVA Global Nutrition Committee
- Cats: feel for the abdominal fat pad between the back legs; a large, swinging pad points to extra fat. WSAVA Global Nutrition Committee
- Muscle: feel along the spine, shoulder blades and hips. Muscle loss usually shows first along the spine. WSAVA Global Nutrition Committee (chart by Tufts University)
- Long or double coats hide a lot: feel, do not just look. WSAVA Global Nutrition Committee (chart by Tufts University)
Why is the score more useful than the weight?
Weight alone does not tell you whether that weight is fat, muscle or frame. A lean 30 kg Labrador and a fat 30 kg Labrador weigh the same. The score reads the body itself, which is why vets record it alongside weight, and why WSAVA publishes free charts for owners. Scores also travel well between people: if your vet says your dog is a 7 out of 9, you, your family and your sitter all know what you are aiming for.
WSAVA's muscle condition chart adds a second lens. An older or ill pet can lose muscle while staying the same weight, or even while carrying extra fat. Muscle loss is graded as normal, mild, moderate or severe, and WSAVA says both scores should be checked on every animal at every visit.
What should you do if your pet's score is too high or too low?
Talk to your vet before changing the diet: they will set a target score and a safe pace. In Indian homes, extra weight often comes from the small things: a piece of roti at every meal, biscuits with evening chai, leftovers from family plates, and treats from every visitor. Counting these, and cutting treats down rather than the main balanced meal, is usually where a plan starts. Neutered dogs, PDSA notes, need roughly 30% fewer calories.
A score that is falling, or ribs and spine you can suddenly feel, is a reason to see your vet soon, especially in an older pet: unexplained weight or muscle loss always needs a vet's check.
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Questions owners ask
What is a good body condition score for a dog?
- On WSAVA's 9-point scale, the ideal is in the middle, around 4 to 5. At that score you can feel the ribs easily under a thin layer of fat, see a waist behind the ribs from above, and see the belly tuck up from the side.
How do I know if my cat is overweight?
- Use WSAVA's cat chart: at an ideal 5 the ribs are felt with a slight fat covering, there is a waist behind the ribs and only a small belly fat pad. If the ribs are hard to feel and the belly is rounded, your cat is likely over ideal. WSAVA notes 6 may be acceptable in some older cats.
Is body condition score the same as weight?
- No. Weight measures the whole body; the score judges how much of it is fat, by feeling the ribs and looking at the waist. Two dogs of the same weight can have very different scores. Vets record both, and WSAVA also recommends a separate muscle condition score.
What is a muscle condition score?
- It grades muscle mass as normal, or mild, moderate or severe loss, by feeling the spine, shoulder blades, skull and hips. WSAVA says a pet can lose muscle even while overweight, so both scores should be checked at every visit, especially in older or ill pets.
Keep reading
Related terms
More in breeds and anatomy
- BrachycephalicBrachycephalic means short-headed: dogs and cats bred with a flat face and short muzzle, such as the Pug, Shih Tzu, French Bulldog, Bulldog and Persian cat. The squashed airway makes breathing and cooling harder, so these pets overheat more easily, a real risk in Indian summers. Several Indian airlines refuse them in the hold.
- DewclawsDewclaws are the extra toes with claws that sit a little above a dog's foot, on the inner side of the leg, most often on the front legs. Because they do not touch the ground, walking never wears them down, so they need regular trimming. Left long, a dewclaw can curl round and grow into the toe pad, which hurts.
- Double coatA double coat is two layers of fur: a soft, dense undercoat close to the skin and a longer outer coat of guard hairs. Huskies, Labradors, Golden Retrievers and Pomeranians have one. The undercoat insulates against heat as well as cold, so vets advise brushing it out regularly rather than shaving the dog in an Indian summer.
- Indie dogAn indie dog is India's native dog: the free-living type often called the Indian pariah dog, INDog or desi dog, rather than a pedigree breed. It is usually medium-sized, short-coated, prick-eared and curl-tailed, alert and territorial. Genetic research finds Indian village dogs show little European ancestry, making them one of the world's older dog populations.
- MicrochipA pet microchip is a tiny identification chip, about the size of a grain of rice, injected under the skin, usually between the shoulder blades. It holds a unique number that a scanner reads, linked to your contact details on a database. It is not a GPS tracker. Most countries you might move a pet to require an ISO-standard chip.
- Senior petA senior pet is in the later part of its expected life. For cats, vets' guidelines say senior means over 10 years. For dogs it depends on size: AVMA counts giant breeds as seniors from about 6 to 7 years and small dogs from about 8 to 11. Old age is not a disease, but seniors need closer checks.
- Spay and neuterSpaying and neutering are surgeries that stop a pet breeding. Spaying a female removes the ovaries and usually the womb; neutering or castrating a male removes the testicles. Besides preventing litters they lower some health risks, such as womb infection in females. The right age depends on species, breed and size, so your vet decides the timing.
Keep exploring
Sources
Each source was opened and read on the date shown. How Petym checks its sources
- WSAVA Global Nutrition Committee: Body condition score chart: dogs (June 2025) (opens in a new tab)
- WSAVA Global Nutrition Committee: Body condition score chart: cats (June 2025) (opens in a new tab)
- WSAVA Global Nutrition Committee (chart by Tufts University): Muscle condition score chart for dogs (opens in a new tab)
- PDSA: Dog neutering: a guide to castration and spaying (opens in a new tab)