Most healthy adult dogs should have bloodwork at least once a year, and senior dogs every six months. That is the cadence behind the twice-yearly wellness exams veterinary bodies like AAHA recommend for older dogs — and it exists because blood chemistry shifts long before symptoms show.

Why test a dog that seems perfectly healthy?

Because dogs hide illness. Chronic conditions — kidney disease, liver disease, diabetes, inflammatory disease — typically progress for months or years before a visible symptom appears, and biomarkers move first. Around 1 in 5 apparently healthy dogs is carrying a condition that will affect its lifespan. By the time you notice a limp, a lump, or a behavior change, the window for the easiest interventions has often already narrowed.

How often should a young adult dog get bloodwork?

Once a year is the baseline for healthy dogs between roughly one and seven years old. The most valuable test is the first one: it establishes your dog’s individual reference values, so later results can be judged against your dog’s normal rather than a population average. A value that is technically “in range” but drifting year over year is exactly the kind of signal an annual series catches and a single test cannot.

When should that increase to every six months?

Three situations call for a six-month cadence:

  • Senior dogs — from about age seven for most breeds, earlier for giant breeds that age faster.
  • Dogs with a flagged result — any biomarker outside or trending toward the edge of its reference range deserves a follow-up rather than a twelve-month wait.
  • Dogs starting a new protocol — a diet change, supplement, or medication should be checked against the bloodwork it was meant to move.

What does a baseline panel actually measure?

A standard veterinary wellness panel covers roughly 5–10 markers. A longevity-oriented baseline like Omi’s reads 80+ biomarkers across renal, hepatic, metabolic, inflammatory, and cardiac categories — breadth that matters because early disease rarely announces itself in the handful of values a minimum panel covers. Omi’s testing is done at home from a blood draw and saliva sample, and the recommendations generated from the results are built on veterinary-reviewed guidance, with licensed veterinarians reviewing samples of that output as ongoing quality assurance.

Does at-home testing replace the vet?

No. Longitudinal biomarker data makes vet visits sharper, not optional. Bring the trend history to your next appointment and your veterinarian is interpreting months of data instead of a single 15-minute snapshot. Any out-of-range result should always be discussed with your vet.

This article is general information, not veterinary advice for your individual dog. Always consult your veterinarian about your dog’s health.