Insect bites and stings in cats – signs and next steps

Updated 2026-09-30 · 1 sources

Based on: PDSA

Contact a vet today

Contact your vet today if you think your cat has this – it can become serious. Insect bites and stings are bites or stings from insects that can affect your cat.

What you can do now

  1. Contact your vet today.
  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 cat rest somewhere calm.

Don't

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

What it is

Insect bites and stings can cause mild symptoms in cats, but some cats may have severe swelling or an allergic reaction.[1] Cats are most likely to be bitten or stung on the face or a paw because they may be trying to catch the insect.[1]

Signs

  • Mild swelling in the affected area
  • Licking, nibbling or pawing the sting site
  • Limping or holding up a paw
  • Drooling
  • Severe and rapid swelling around the bite or sting site
  • Hives or a severe rash
  • Rapid breathing or difficulty breathing
  • Collapse
  • Vomiting and diarrhoea
  • Whining and crying

What the experts say

“However, if your cat has been stung/bitten several times, or appears to be having an allergic reaction you’ll need to contact your vet immediately.”

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.

Get it on Google Play

OkPaw is on Android now – an iPhone version is on its way.

Common questions

Where are cats most likely to be bitten or stung?

Most cats are bitten or stung on the face or a paw.[1]

What signs can insect bites and stings cause?

Signs can include swelling, licking or pawing the area, limping, drooling, hives, breathing difficulties, collapse, vomiting and diarrhoea.[1]

When should I contact a vet immediately?

Contact a vet immediately if your cat has been stung or bitten several times, or appears to be having an allergic reaction.[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

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