Urgent
Weight Loss in Pets
Loss of more than 5–10% body weight in a month without dieting warrants a full work-up.
In senior cats, rapid weight loss often means hyperthyroidism, diabetes, or chronic kidney disease.
Weight Loss in Pets
Loss of more than 5–10% body weight in a month without dieting warrants a full work-up.
- •Kidney disease
- •Diabetes
- •Hyperthyroidism in cats
- •Tumours
Possible causes
- •Kidney disease
- •Diabetes
- •Hyperthyroidism in cats
- •Tumours
- •Parasites
- •Chronic pain (dental)
What to do at home
- Weigh weekly
- Keep a food diary
- Check teeth and gums
- Bring recent labs to the visit
When to call the vet
- →Weight loss over 10% in a month
- →Combined with thirst and frequent urination
- →Appetite preserved but weight drops
- →Visible ribs or hips
FAQ
How much should a healthy pet weigh?
Varies by breed. Best metric is body condition score on 1–9 scale. Ideal is 4–5/9.