Body Condition Score (BCS) is a simple 1-to-9 scale vets use to judge whether a pet is underweight, ideal, or overweight. Unlike the number on a scale, it accounts for body shape, so it works for any breed or size.
Keeping a pet at an ideal score is one of the most effective things an owner can do for long-term health. Excess weight raises the risk of joint disease, diabetes, and a shorter lifespan, while being too thin can signal illness.
| Score | Condition |
|---|---|
| 1-3 | Underweight: ribs, spine and hip bones easy to see, no fat cover. |
| 4-5 | Ideal: ribs easily felt, visible waist and abdominal tuck. |
| 6-9 | Overweight: ribs hard to feel, little or no waist, fat deposits. |
The 1-9 scale and the ideal range (4-5) are the same, but the body landmarks differ slightly; cats also have a primordial belly pouch that is normal.
Once a month is plenty for most pets. Check more often during a weight-loss or growth plan.
Talk to your vet about a feeding plan. Small, measured portion changes and more activity usually move the score back toward ideal.
On the 1-9 scale, the ideal range is 4-5: you can easily feel the ribs, see a waist from above, and see an abdominal tuck from the side. Scores of 1-3 mean underweight and 6-9 mean overweight.