PetwellPET HEALTH REFERENCE
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Parasites · Cats & dogs

Fleas, ticks, and worms

Parasite concerns may look mild at first but often need a plan tailored to the pet's age, species, and prevention history.

Compiled by Petwell · Source content version 2.0.0
Source project update: 2026-05-13

Fleas, ticks, and worms

Educational pet-health and visit-preparation reference. Not a diagnosis, prescription, dosage recommendation or substitute for a veterinarian.

Care & observations

  • Take photos of ticks, fleas, worm segments, or stool changes when possible.
  • Review the last deworming and flea/tick prevention dates before the visit.

Seek veterinary care now

  • Collapse, severe weakness, pale gums, or many ticks on a sick pet.

Contact your veterinarian soon

  • Visible worm segments, repeated scooting, intense itching, or skin infection from parasites.

What to avoid

  • Do not guess doses from another pet's parasite product.

MAKE YOUR OBSERVATIONS USEFUL

Bring a clear timeline to your vet

For the changes covered in this guide, note when they started, how often they happen, whether they are worsening and how they differ from your pet’s usual routine. List recent diet changes, medicines, travel or possible ingestion in time order. Add photos or a short video only when it is safe and will not delay care.

Open local health records

Sources & editorial context

Migrated from the Pet Vet Reference project with its bilingual content preserved. Cited organizations provide background resources and do not endorse this site. Source-based compilation is not individual clinical review; this page does not claim veterinarian sign-off.

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