What to track when your pet seems different
When something seems off with your cat or dog, a useful record captures two things: what changed, and how it differs from that animal's normal. A single observation is hard to interpret on its own. The same observation, set against what is usual for your pet and noted with when it started and whether it is getting better or worse, is far more informative — both for you and for the veterinarian you may end up speaking to.
Why does my pet's normal baseline matter?
Because "drinking a lot" and "drinking more than usual" are different pieces of information, and only the second one tells you something changed. Without a sense of what is normal for your individual animal, every observation has to be judged against pets in general — and pets in general vary enormously in what they eat, how much they drink, how active they are and how they behave.
Routine, everyday attention is where most of this comes from. The Merck Veterinary Manual notes that routine care and grooming "enable early identification of health problems", and that close observation lets an owner evaluate changes in appetite, thirst, urination, defecation, ambulation and general behaviour — with any changes potentially indicating the need for a more thorough examination.
That list is a good starting point for what is worth knowing about your pet before anything is wrong.
What should I write down when my pet seems different?
A practical way to organise it is around six things. The observation categories themselves come from the sources below; grouping them this way is simply what we have found makes a record usable. Together they turn a vague worry into something specific — the difference between "she's been off lately" and a description a veterinarian can work with.
1. Baseline — what is normal for this animal
What your pet's eating, drinking, toileting, activity and behaviour usually look like. If you do not have this yet, write down today's version of it; it becomes the baseline for next time.
2. Change — what is actually different
Describe the observation itself, as plainly as possible. "Left half her breakfast three days running" is more useful than "not eating properly". Numbers, portions and counts beat adjectives.
3. Onset — when it started
A date, or the closest you can get. "About a week ago, around when we changed food" is a genuinely useful answer. Onset is one of the first things you will be asked and one of the easiest to lose track of.
4. Pattern — constant, intermittent, better or worse
Is it there all the time or only sometimes? Only after meals, only at night, only after exercise? And crucially: is it stable, improving, or getting worse? A change that is worsening is a different situation from one that has been steady for a month.
5. Context — what else changed around it
New food or treats, a diet change, a house move, a new pet or person, a recent vaccination or medication, hot weather, a change in routine. Context often explains a change, and when it does not, ruling it out is still useful.
6. Evidence — history, numbers and images
Current medications and supplements, known conditions, relevant past illness or injury, and weight if you have it. A photo or short video helps when a change is visible or intermittent — gait, a skin change, or breathing that is hard to describe but obvious to watch. Do not attempt to photograph anything that requires restraining or distressing your pet.
Which everyday categories are worth recording?
The categories veterinarians ask owners about are a reliable guide to what is worth noticing. Merck's owner-facing material on detecting kidney and urinary problems in dogs and cats describes the history a veterinarian gathers: changes in how much your pet drinks, how often they urinate, how much urine they produce, how the urine looks, and how your pet behaves — alongside appetite and diet, changes in body weight, and previous illnesses or injuries.
Combined with Merck's broader observation list, that gives a practical set to keep an eye on:
- Appetite — how much, how eagerly, any change in food
- Water intake — noticeably more or less than usual
- Urination — frequency, amount, appearance, effort
- Defecation — frequency, consistency, effort
- Weight — the trend over weeks, not one reading
- Activity and mobility — walking, jumping, stairs, stiffness
- Behaviour and mood — hiding, clinginess, irritability, sleep
None of these mean anything on their own. They are worth recording precisely because a change across several of them at once, over time, is much more informative than any single reading.
The first two are common enough, and specific enough, to have guides of their own: pet appetite changes covers what to record when a pet eats more, less or differently, and pet water intake changes covers how to notice and measure a change in drinking.
When should I stop tracking and contact a veterinarian?
Immediately — do not wait to build a record. The Merck Veterinary Manual lists signs that warrant seeing a veterinarian immediately. They include failure to eat or drink for 24 hours, difficulty breathing, seizures, heavy bleeding, straining but failing to urinate or defecate, severe or constant pain, staggering or other problems walking, and extreme lethargy.
Merck separately lists a milder tier of signs warranting veterinary attention within 24 hours, including lack of appetite but no other signs of illness, excessive water consumption, vomiting or diarrhoea lasting more than a day, a sudden change in behaviour, and sudden weight gain or loss.
Where Patter fits
The useful part of a record is usually the context around it, and that is the part that is tedious to keep by hand. Patter is built around exactly that: guided daily visual checks evaluated with AI, a daily mood score that builds into a pattern, nutrition and water intake analysed against your pet's own profile, weight history read as a trend, and vaccination and vet visit records — all held together rather than in separate places.
Because those signals sit in one picture, Patter can surface what deserves a closer look and suggest what a change might be related to, using a condition your pet is already known to have. It does not diagnose. See health in Patter for how that works, and Patter and your veterinarian for where it stops.
Related
- How to prepare information for a vet visit — turning a record into something useful in the exam room.
- Pet weight and body condition — why the number on the scale is only part of the picture.
- Pet appetite changes — the same record, focused on eating.
- Pet water intake changes — the same record, focused on drinking.
Sources
The veterinary facts on this page come from the references below. They are independent sources of pet-care information and have no connection to Patter.
- Overview of Preventative Health Care and Husbandry in Small AnimalsMerck Veterinary ManualCited for: what routine observation can reveal, and the categories worth watching
- Detecting Disorders of the Kidneys and Urinary Tract in DogsMerck Veterinary ManualCited for: the history a veterinarian gathers from an owner (dogs)
- Detecting Disorders of the Kidneys and Urinary Tract of CatsMerck Veterinary ManualCited for: the history a veterinarian gathers from an owner (cats)
- When to See a VeterinarianMerck Veterinary ManualCited for: signs warranting immediate or same-day veterinary attention