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SYMPTOM → WHAT DO I DO?

Itching

Check where the animal itches, whether the skin is broken and whether other animals are affected.

ASSESS THE PATTERN AND CALL IF IT PERSISTS
Illustration of a dog and cat with a magnified skin parasite
OWNER VISUAL GUIDESkin and ear signs can have several causes; appearance alone cannot identify the problem. This educational illustration is not a diagnostic image.

READ THIS FIRST

Observations can help your veterinarian. They cannot rule out an emergency.

Contact an emergency veterinary facility immediately for difficult breathing, collapse, ongoing seizures, inability to urinate, major bleeding, abnormal gum color, sudden severe abdominal swelling or rapidly worsening weakness.

01 · POSSIBLE CAUSES

What could be behind this symptom?

These are possibilities, not a diagnosis. The right explanation depends on the examination, species and medical history.

  • Fleas, mites, lice or other external parasites
  • Environmental allergies, food reactions or skin infection
  • Contact irritation, dry skin or grooming products
  • Pain, behavioral stress or an underlying endocrine disorder
02 · WHAT YOU CAN OBSERVE

What can you safely check at home?

Write down what you see and bring photographs or video only when doing so does not delay care.

  • Location, intensity and timing of scratching, licking or rubbing
  • Hair loss, redness, scabs, odor, fleas or flea dirt
  • Whether people or other animals in the household are itchy
  • Recent foods, shampoos, bedding, outdoor exposure or new animals
03 · WHAT NOT TO DO

Avoid actions that can make things worse.

  • Do not apply dog flea products to cats or use a medication intended for a different species.
  • Do not use essential oils, home pesticide mixtures or steroid cream without advice.
  • Do not repeatedly bathe already-inflamed skin.
  • Do not allow scratching to continue until the skin bleeds.
04 · WHEN TO CALL

When should you contact your veterinarian?

  • Arrange an appointment for persistent itching, skin odor, scabs, recurrent ear problems or hair loss.
  • Ask about appropriate parasite prevention and whether contagious mites are possible.
  • Seek earlier evaluation when itching affects sleep or daily activity.
05 · WHEN IT IS AN EMERGENCY

Get emergency help immediately if you see:

  • Facial swelling, hives, collapse or trouble breathing after an exposure
  • Rapidly spreading raw skin, severe pain or signs of infection with lethargy
  • Suspected exposure to a toxic parasite-control product
Open the emergency action guide →
06 · SPECIES-SPECIFIC CONCERNS

The same symptom can mean different things in different animals.

Cats

Cats may overgroom rather than visibly scratch; hair thinning and skin scabs can still reflect substantial itch.

Birds

Feather destruction can have medical, environmental and behavioral causes; do not assume it is simply boredom.

Reptiles & amphibians

Retained shed, mites, skin infection or incorrect humidity require species-specific assessment.

Related Resources

Household FleasMites in Dogs & CatsAllergic skin diseaseDiagnostic testing libraryWhen it is an emergency
TRUSTED SOURCES

Sources behind this guidance

American Veterinary Medical AssociationFirst aid tips for pet owners and limits of home careMerck Veterinary ManualVeterinary professional and pet-owner disease referencesMerck Veterinary Manual: urinary obstructionWhy urinary blockage in cats requires immediate veterinary attention

These educational resources support a conversation with your veterinary team. They do not replace examination, diagnosis or species-specific emergency care.