PETTAS

4/6/2026 ・ ~7 min read

Senior Dog Weekly Health Checklist: Catching Changes Early

A practical 7-point weekly health checklist for senior dogs (age 7+). Learn what to observe in weight, gait, appetite, oral health, skin, elimination, and behavior — and when it's time to see the vet.

Senior Dog Weekly Health Checklist: Catching Changes Early

Is Your Senior Dog Changing Without You Noticing?

Dogs enter their senior years around age 7 — and for large breeds, it can be as early as 5 or 6. Since one human year equals roughly 4–7 dog years, a dog that seemed perfectly healthy six months ago can experience significant age-related changes in what feels like no time at all.

But here’s the important thing: most age-related health issues don’t appear overnight. They progress gradually over weeks and months. The difference between catching a problem early and catching it late is often the difference between management and crisis.

This article presents 7 checkpoints you can observe once a week to spot changes in your senior dog before they become serious.

Check 1: Weigh Your Dog

Weight is the single most objective and easily tracked indicator of your senior dog’s health.

What to watch for:

How to weigh a large dog: Step on a human scale while holding your dog, then subtract your own weight. For small dogs, a baby scale or pet scale works well.

Check 2: Watch How They Move

Joint disease and neurological problems often show up first as changes in gait.

What to watch for:

Key insight: Gradual hind-leg weakness is commonly dismissed as “just getting old,” but osteoarthritis and intervertebral disc disease are treatable. Pain management alone can dramatically improve quality of life.

Check 3: Monitor Appetite and Water Intake

Changes in eating and drinking habits are early indicators of internal organ problems.

What to watch for:

How to measure water intake: Fill the bowl with a measured amount each morning. Check how much is left after 24 hours. The normal range is 40–60 ml per kg of body weight per day. In multi-dog households, provide separate water bowls to track individually.

Check 4: Examine the Mouth

Periodontal disease affects roughly 80% of dogs over age 3, but it accelerates in the senior years — and it doesn’t stay in the mouth. Chronic dental infection is linked to heart, kidney, and liver damage.

What to watch for:

How to check: Once a week, gently lift your dog’s lips and inspect the gum line and teeth. Start this habit gradually during calm moments (like petting sessions) if your dog isn’t used to it.

Check 5: Inspect Skin and Coat

Senior dogs experience slower skin cell turnover and changes in coat quality.

What to watch for:

Critical note: Senior dogs are prone to skin tumors — both benign and malignant. When you find a new lump, record its size, location, and the date you discovered it, and report it to your vet. Lumps that grow rapidly require urgent evaluation.

Check 6: Observe Elimination Habits

Stool and urine are direct reflections of internal health.

What to watch for:

Recording tip: Take a quick photo of unusual stool to show your vet — it provides more useful information than a verbal description. Note urination frequency during walks as a simple tracking method.

Check 7: Assess Behavior and Cognition

Canine Cognitive Dysfunction Syndrome (CDS) — sometimes called “dog dementia” — affects a significant percentage of dogs over 11 years old.

What to watch for:

Important: Multiple symptoms of CDS appearing together warrant a vet visit — not dismissal as “just aging.” Medications and supplements (DHA, EPA, vitamin E) can slow progression, and maintaining predictable routines and providing mental stimulation (puzzle toys, scent games) helps manage symptoms.

Weekly Checklist Template

Make this a Sunday (or any fixed day) habit:

If 3 or more items show changes, schedule a vet visit within 2 weeks.

What to Bring to Your Vet Appointment

Having this information ready transforms a vet visit from guesswork into targeted assessment:

Dated, numerical records lead to faster, more accurate diagnoses than subjective impressions.

FAQ

Q1. How often should a senior dog have a full veterinary exam?

A. Twice a year is recommended. Since one human year equals 4–7 dog years, a biannual exam is equivalent to a human seeing their doctor every 2–3 years. Include blood work and urinalysis for the most complete picture of internal health.

Q2. Should I reduce my senior dog’s exercise?

A. Don’t cut exercise arbitrarily — adjust the intensity to match your dog’s pace. Shorter, gentler walks are better than no walks at all. Inactivity accelerates muscle loss and worsens joint problems. If you notice signs of pain (limping, reluctance), talk to your vet about pain management options rather than simply stopping walks.

Q3. When should I switch to senior dog food?

A. Most veterinarians recommend transitioning to a senior formula around age 7. Senior foods are lower in calories and enriched with joint-support ingredients (glucosamine, chondroitin) and antioxidants. Transition gradually over 1–2 weeks by mixing increasing amounts of the new food with the old.

Q4. What should I do if I suspect cognitive dysfunction?

A. See your vet. If CDS is diagnosed, supplements (DHA, EPA, vitamin E, SAMe) and prescription medications can help slow progression. Environmental strategies include keeping furniture layout consistent, maintaining daily routines, and providing low-intensity mental enrichment like snuffle mats and nose work games.

Editor’s Pick


Track Senior Dog Health with PETTAS

PETTAS’s Weight Tracking Graph visualizes weekly measurements so you can spot gradual trends that are invisible day-to-day. Combined with visit logs and medication records, every piece of your senior dog’s health picture lives in one place — accessible from your phone when you walk into the vet’s office.

Being able to tell your vet exactly when something changed is one of the most powerful tools in senior dog care. Start your 14-day free trial at PETTAS.