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SESK: Stuff Everyone Should Know · sesk.info/horse-senior-vet-visits

How often should a horse over 20 years old see the vet, per Merck?

Twice a year or more once past age 20.

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  1. Once every two years
  2. Twice a year or more ✔
  3. Only when sick

Why: Merck says adult horses should have a full checkup at least once a year. Horses over 20 should be seen twice a year or more often, because they can get sick more easily.

Huh, didn't know that: The AAEP says older horses are prone to tumors, so look for lumps from head to tail, especially on gray horses.

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References

Answer: Twice a year or more. Merck says adult horses should have a full checkup at least once a year. Horses over 20 should be seen twice a year or more often, because they can get sick more easily.

  1. Routine Health Care of Horses (Merck Veterinary Manual) www.merckvetmanual.com/horse-owners/routine-care-of-horses/routine-health-care-of-horses
    Horses more than 20 years old should see the vet twice a year or more often, because they can get sick more easily.
    Checked 2026-10-10.
  2. 10 Tips for Caring for the Older Horse (AAEP) aaep.org/wp-content/uploads/2024/03/10_Tips_for_Caring_for_the_Older_Horse.pdf
    Look for any unusual lumps or growths from head to tail as well as beneath the tail (especially on gray horses).
    Checked 2026-10-10.
  3. Routine Health Care of Horses (Merck Veterinary Manual) www.merckvetmanual.com/horse-owners/routine-care-of-horses/routine-health-care-of-horses
    Adult horses should visit the vet for a full checkup at least once a year.
    Checked 2026-10-10.

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