Dog itching – when should I see a vet?

Updated 2026-09-30 · 1 sources

Based on: PDSA

Book a vet visit

This is not usually an emergency on its own – contact your vet if it lasts, gets worse or your dog seems unwell in any other way. It can be caused by fleas, skin allergies, mites and lice, bacterial or yeast infections, allergic reactions, hot spots, wounds or ringworm.

What to do now

What you can do now

  1. Contact your vet.
  2. Note when it started, how often it happens and what else you see.
  3. Take a photo or short video to show the vet.
  4. Keep fresh water available.
  5. Let your dog rest somewhere calm.

Don't

  • Do not give any human medicine.
  • Do not wait if it gets worse.

What it can mean

Itchy skin is a very common problem in dogs.[1] Itching can be caused by fleas, skin allergies, mites and lice, bacterial infection, yeast infection, an allergic reaction, hot spots, wounds, ringworm or immune-mediated skin disease.[1]

Other signs that can come with it

  • Bald patches
  • Pain
  • Self-inflicted wounds
  • Red or rashy skin
  • Saliva-stained fur
  • Dark, thickened skin
  • Scabs or bumpy skin
  • Coat colour changes

Possible causes

  • Fleas
  • Skin allergies
  • Mites or lice
  • Bacterial infection
  • Yeast infection
  • Allergic reaction to something
  • Hot spots
  • Wounds
  • Ringworm
  • Immune-mediated skin disease

What the experts say

“Fleas ; Skin allergies ; Mites and lice ; Bacterial infection ; Mallassezia (yeast infection) ; An allergic reaction to something (e.g. medicine/cleaning products/washing powder) ; Hot spots ; Wounds ; Ringworm ; Immune mediated skin disease (rare)”

If your pet is struggling to breathe, has collapsed, is having a seizure or can't stand up: go to the nearest vet now.

Not sure how serious it is?

OkPaw asks a few quick questions about your pet and tells you in 30 seconds whether it can wait. Free on Google Play for Android.

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Common questions

What can cause itching in dogs?

It can be caused by fleas, skin allergies, mites and lice, bacterial infection, yeast infection, an allergic reaction, hot spots, wounds, ringworm or immune-mediated skin disease.[1]

What signs can come with itchy skin?

A dog with itchy skin may also have bald patches, pain, self-inflicted wounds, red or rashy skin, saliva-stained fur, or dark, thickened skin.[1]

Is itchy skin common in dogs?

Itchy skin is a very common problem in dogs.[1]

Sources

  1. PDSA

How this page was made: written with the help of AI from the sources below, then checked claim by claim against those sources. Urgency levels follow OkPaw’s fixed safety rules. It is guidance, not a diagnosis. How we write our pages

The same page for cats →

Other symptoms in dogs

Itchy Ears and Head ShakingLimping and stiffnessLoss of balanceLow energyLumpsMouth PainNystagmusOver-groomingRed or swollen eyesRed, inflamed or sore skinReduced AppetiteReverse Sneezing