How to track your cat's hyperthyroidism for your vet
Last reviewed 11 June 2026 · a 4-minute read for owners
Note your cat's appetite, how active or restless they seem, whether there was any vomiting, and their weight if you've checked it (or whether they look thinner or about the same). An increasing appetite alongside restlessness is a common pattern, and a dated log is what makes that combination clear to you and your vet.
What to note each time
- AppetiteNormal, increased, or reduced.
- Activity or restlessnessNormal, more active or restless than usual, or less active.
- VomitingNone, once, or more than once.
- WeightA figure if you've weighed them, or whether they look thinner or about the same.
Why your vet wants this, not your memory
Hyperthyroidism is followed on appetite, activity, vomiting, and weight over time alongside blood results. A cat eating more while losing weight is exactly the kind of pattern that's clearer in a dated log than in memory. It helps your vet judge how things are tracking and how treatment is working.
Common questions
My cat eats well but is losing weight — should I note that?
Yes. That combination is worth recording precisely because it's easy to overlook. Note both and let your vet interpret them together.
How do I track weight without a pet scale?
A note of whether they look thinner or about the same is useful on its own. If you can weigh them now and then, even roughly, that adds to the picture.
Does a log replace blood tests?
No. It works alongside the testing your vet schedules and makes those appointments more useful by showing the day-to-day picture.
What's the easiest way to keep an appetite and weight log?
Whatever you'll keep up with. A digital log captures the date for you and lets you share the whole record with your vet without rewriting it. Taile is a free way to do this.
Keep the record without the rewriting
Note each day in seconds and bring the full picture to your next appointment. Free for owners.
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