Mammal · Nocturnal

Hedgehogs: rescue, first aid and care

The first 60 seconds

Leave it if
It is out after dark, moving purposefully, and looks round and healthy.
Help now if
Any hedgehog out in daylight — wandering, wobbling, “sunbathing” or lying still.

Do this

  1. Pick it up gently
  2. Box it
  3. Warm it, carefully

Never: give cow’s milk. Hedgehogs are lactose intolerant and it causes fatal diarrhoea.

Britain’s favourite garden visitor is in steep decline. Knowing the handful of signs that mean a hedgehog is in trouble — and the two foods that kill them — is the most useful wildlife knowledge you can have.

Rescues across the UK take hedgehogs

Handle?
Yes, with gloves
Busiest months
Sep – Nov
Key weight
450–500g before winter
Lifespan
2–5 years
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The one thing to remember

A hedgehog out in daylight is in trouble. Healthy ones are asleep.

Step one

Does it need help?

Look before you touch. Intervening when an animal is fine is one of the most common mistakes — and it can cost the animal its life.

Leave it be if…

  • It is out after dark, moving purposefully, and looks round and healthy.
  • You have found a nest of hoglets with the mother present — cover it back over and keep pets away.
  • It is curled up in a leaf pile or under a shed in winter: that is hibernation. Replace the cover gently.

Step in if…

  • Any hedgehog out in daylight — wandering, wobbling, “sunbathing” or lying still.
  • Fly eggs (tiny white clusters) or maggots anywhere on it. This is an emergency; hours matter.
  • In late autumn or winter, any hedgehog under about 450–500g — it cannot survive hibernation.
  • Caught in netting, stuck in a drain or cattle grid, or injured by a strimmer or mower.
  • Hoglets out of the nest and squeaking, or with no sign of the mother for a few hours.

Step two

First aid, step by step

What to do in the first ten minutes, in order. If anything here feels unsafe, stop, step back and phone a rescue for advice instead.

  1. 01

    Pick it up gently

    Use thick gardening gloves or a folded towel. Scoop from underneath — it will curl up, which is fine.

  2. 02

    Box it

    A high-sided cardboard box lined with newspaper or an old towel. Hedgehogs climb, so the sides need to be tall or the box covered with air gaps.

  3. 03

    Warm it, carefully

    A hot-water bottle, or a plastic bottle of warm (not boiling) water, wrapped in a towel at one end of the box. It must be able to move away from the heat. A cold hedgehog cannot digest food.

  4. 04

    Check for flies

    Look around the eyes, ears, mouth and back end. If you see eggs or maggots, ring a rescue straight away and say so — it changes their priority.

  5. 05

    Weigh it if you can

    Kitchen scales are fine. The weight tells a rescue almost everything about how urgent this is.

  6. 06

    Ring a rescue

    Hedgehog rescues are the most common type in the UK. Use the finder, and describe the weight, any injuries and where you found it.

Important

What never to do

  • Never give cow’s milk. Hedgehogs are lactose intolerant and it causes fatal diarrhoea.
  • No bread, no mealworms, no peanuts. Mealworms in particular cause bone disease.
  • Do not give food or water to a cold hedgehog — warm it first.
  • Do not try to release a hedgehog that was out in daylight until it has been checked.

Food and water

Should I give it food or water?

Once it is warm, you can offer a shallow dish of plain water and meaty cat or dog food (chicken in jelly is ideal) or specialist hedgehog biscuits. Nothing else.

Seasonal guide

Through the year

When rescues see the most hedgehogs — and what is driving it.

Busiest in September, October and November.

  1. January: Some
  2. February: Some
  3. March: Some
  4. April: Busy
  5. May: Busy
  6. June: Busy
  7. July: Busy
  8. August: Busy
  9. September: Peak
  10. October: Peak
  11. November: Peak
  12. December: Busy
  • Mar – AprWaking from hibernation, hungry and underweight.
  • Jun – SepHoglet season. Strimmer and drowning injuries peak.
  • Oct – Dec“Autumn juveniles” too small to hibernate. Bonfire nights.

Background

Hedgehog facts

Up to 2km a night

A hedgehog travels a mile or more foraging. Fenced-in gardens are one of the main reasons numbers have fallen.

Around 5,000 spines

Each spine is a modified hair. They roll into a ball, which protects them from most things except cars.

Insect specialists

Beetles, caterpillars and worms. Slug pellets poison them twice over — directly and through their food.

A species in trouble

Rural populations in Britain have fallen by between a third and three-quarters since 2000.

Prevention

Help them where you live

  • Cut a 13cm × 13cm “hedgehog highway” gap at the bottom of your fence and tell your neighbours.
  • Check long grass before strimming and bonfire piles before lighting them.
  • Put a ramp or a stone in ponds so anything that falls in can climb out.
  • Leave a wild corner with leaves and logs, and skip slug pellets.
  • Put out water and meaty cat food in dry spells and in autumn.

The law. Hedgehogs are protected from being killed or taken by certain methods under Schedule 6 of the Wildlife and Countryside Act 1981. Taking in a sick hedgehog to get it help is entirely legal.

FAQ

Questions people ask

Can I keep the hedgehog overnight and take it to a rescue in the morning?
Often, yes — warm, in a secure box, with water and meaty food. But not if there are fly eggs, wounds, or it is not responding. Ring first; many rescues have an out-of-hours number or advice line.
It’s a small hedgehog in November. Should I just feed it in the garden?
Under about 450–500g in late autumn, it is unlikely to survive hibernation even with supplementary food. Weigh it and ring a rescue — many will advise or take it in to overwinter.
The hedgehog is making a wheezing or clicking sound.
That is usually lungworm or a respiratory infection, and it needs treatment. Keep it warm and contact a rescue.
Is it a hedgehog or a rat in my garden at night?
Hedgehogs shuffle and snuffle loudly and move with a rolling gait. A trail camera is a fun way to find out who is visiting.

Ready to call?

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General first-aid guidance compiled from UK rescue organisations, not veterinary advice. Where this and a vet disagree, the vet is right.