When Should Dogs Get Health Checks? 5 Age Stages, Tests & Frequency Table

📌 Key Takeaways

• ✅ Dogs are good at hiding discomfort; waiting for symptoms is often too late
• ✅ Do a full health check at 1–2 years old to establish a lifelong baseline report
• ✅ Adults aged 2–6 can be checked every 2 years; kidney and liver disease have no outward symptoms
• ✅ Dogs over 10 should be checked at least twice a year; endocrine tests and SDMA become must-do
• ✅ Fast for 8–12 hours before the check and bring vaccination records to compare trends

Many owners think: "My dog eats well, sleeps well, is lively and active—no need for a health check. We'll go to the vet when there's a problem." But there's a saying in the veterinary profession—dogs are extremely good at masking discomfort. By the time you can see a problem with your own eyes, the disease has often been developing for some time. Humans are advised to have a health check once a year, and a dog's metabolism is several times faster than a human's. One of their years equals several of ours. So health checks aren't just necessary—they must be "the right tests at the right age": a 2-month-old puppy and a 12-year-old senior need completely different checks.

This guide is based on the age-specific health check framework in 'Dog Knowledge Encyclopedia', combined with senior dog care literature, to help you organise the checklists, recommended frequency and key report indicators for 5 age stages. Follow it and you won't miss anything.

Why should health checks be "age-specific"?

Dogs of different ages face completely different health risks:

• Puppy stage: The immune system is not fully developed; the biggest threats are infectious diseases such as distemper and parvovirus, as well as intestinal parasites.
• Adult stage: Infection risk decreases; congenital organ problems, dental disease and obesity begin to emerge.
• Middle-aged and senior stage: Chronic diseases of the kidneys, heart and endocrine system enter a high-incidence period, and cancer risk also begins to rise.

The essence of a health check is to find disease during the window when there are no symptoms yet. Age-specific checks ensure your money and effort go to the most relevant areas.

Health check items for 5 age stages (must-do + optional)

1. Puppy stage (2–3 months old)

Must-do: Physical examination, complete blood count (CBC), faecal examination, infectious disease screening.

The core task at this stage is to confirm "home safety": are there any carrier parasites, is there any infectious disease? After completing the full vaccination series, it's recommended to add an antibody titre test to confirm whether antibody levels have reached protective levels—vaccination doesn't guarantee protection; only antibody testing truly confirms it. For infectious disease screening, some test strips can be bought for home use, but positive or suspicious results must be taken to a veterinarian for verification.

2. First full health check (1–2 years old)

Must-do: Physical examination, blood biochemistry, full abdominal ultrasound, DR (digital X-ray), faecal examination.

This is one of the most important health checks in a dog's life—establishing a "baseline report". All future health changes will have a comparison point. For the first check, it's recommended to include DR to also assess skeletal development, especially the hip and elbow joints. For large breeds and short-legged breeds like corgis, don't skip this.

3. Adult stage (2–6 years old)

Must-do: Physical examination, full abdominal ultrasound, blood biochemistry.

Optional: SDMA kidney function indicator, echocardiography, urinalysis, faecal examination.

If the baseline report is all normal, this stage can be checked every 2 years; SDMA is recommended every two years. Don't think that because nothing has happened, you never need to check—early kidney and liver lesions have no outward symptoms at all.

4. Middle-aged and senior stage (6–10 years old)

Must-do: CBC, blood biochemistry, full abdominal ultrasound, DR, echocardiography.

Optional: Urinalysis, blood pressure measurement, SDMA, faecal examination.

Entering this stage, at least once a year is recommended, and checks should be as comprehensive as possible. Echocardiography moves from "optional" to "must-do", because degenerative heart disease in medium and large breeds (such as mitral valve problems) often shows imaging changes before coughing symptoms—waiting for a cough is too late.

5. Senior stage (10+ years old)

Must-do: CBC, biochemistry, full abdominal ultrasound, DR, echocardiography, endocrine tests, faecal examination, urinalysis, SDMA—basically the full set.

At this stage, at least twice a year is recommended. Common conditions in senior dogs such as kidney failure, Cushing's disease, thyroid problems and tumours are often "silent killers". Literature observations show that many dogs aged 11–12 start to show signs of cognitive dysfunction—getting lost, not recognising family members, nighttime restlessness and disorientation. If you notice your senior dog's "personality has suddenly changed", treat it as a health warning sign, not "he's just old, let it be".

How to interpret key check items?

• CBC: Check for anaemia, infection, inflammation—white blood cells and red blood cells are the two main directions.
• Blood biochemistry: A comprehensive snapshot of liver function, kidney function, pancreas and blood sugar—the main battlefield for chronic diseases.
• SDMA: An indicator that reflects kidney function changes earlier than traditional creatinine, suitable for annual tracking.
• Urinalysis + faecal examination: The first line of screening for urinary tract infections, crystals and parasite eggs.
• Full abdominal ultrasound: Directly visualise organ structure and check for masses.
• DR / echocardiography: Standard imaging for bones and joints, and heart structure.

5 preparations owners should make before a health check

1. Fast for 8–12 hours (water is allowed unless your veterinarian instructs otherwise) so blood test results are accurate.

2. Bring vaccination records and previous reports so the veterinarian can compare trends.

3. Collect a fresh faecal sample beforehand (within two days, stored in the fridge) so you don't have to scramble at the last minute.

4. Keep daily observation notes: changes in appetite, water intake, weight and urination habits—these are the history the veterinarian most wants to hear. Especially for senior dogs, use the "rib test" regularly to verify weight: place both hands on the spine and palms on the chest; if you can't feel the ribs, it's time to lose weight.

5. Do "touch desensitisation" at home first: while your dog is relaxed, practise touching ears, gums, paws and tail. They will cooperate much better when examined at the clinic.

PetChill's Reminder

Don't just file the health check report away in a drawer after reading it—save every result and discuss the next focus with your veterinarian. Trends are more important than single values. Especially if you have a dog over 7 years old, treat "once a year" as standard; for those over 10, twice a year is recommended. Early detection is the most practical way to extend your dog's healthy lifespan.

To learn more about scientific dog care, stay tuned for PetChill's latest articles!