Species · Hedgehog (insectivore)
Hedgehog
Atelerix albiventris
The prickly little loner — huffy at first, warmth-dependent, and quietly charming once it learns to trust you.
Difficulty: IntermediatePrintable care sheet →
Hedgehogs are the prickly little introverts of the exotic-pet world — nocturnal, solitary insect-eaters that huff and roll into a defensive ball until they learn to trust you, then become oddly endearing. The catch is that they’re warmth-dependent (they don’t truly hibernate safely), need a specific diet, and get some serious species-specific diseases. This is the honest guide — including checking whether you can even legally keep one.
Hedgehogs are nocturnal and very active, traveling for miles in search of prey.
Care at a glance
| Adult size | Small — males weigh about 400–600 g and females about 300–400 g, a body that curls into a spiny ball a little bigger than a large orange. |
|---|---|
| Lifespan | Averages 4–6 years, and some reach 8 — longer than most people expect from such a small animal. |
| Enclosure | A single hedgehog needs its own secure, well-ventilated cage with a solid, escape-proof design — minimum floor space about 0.6 × 0.9 m (2 × 3 ft), and bigger is better. A large plastic storage bin or a single-level cage with a solid plastic base works; avoid glass aquariums (poor ventilation) and widely-spaced wire (legs can get trapped). A hide is essential, and the bedding should be deep enough (about 8–10 cm) in places for burrowing. They climb and squeeze out of small gaps, so a secure lid matters. |
| Companionship | Hedgehogs are solitary and are kept one to a cage — they don’t need or generally want the company of other hedgehogs, and housing them together risks stress and fighting. |
| Temperature | This is the make-or-break factor. Keep the ambient temperature at 22–32°C, with 24–29°C ideal, using a thermostatically-controlled heat source such as an under-tank heat pad or a ceramic heater. Both too cold and too warm can push a hedgehog into an unhealthy torpor (a dangerous attempted “hibernation”). Keep humidity low (under ~40%), avoid bright light, and give a regular 12 hours light / 12 hours dark cycle. |
| Bedding & substrate | A soft, absorbent bedding such as recycled-paper bedding, aspen shavings, alfalfa pellets or hay, deep enough (8–10 cm) in some areas to burrow. Avoid rough, dusty or scented substrates, and never use loose string or fluffy cloth fibres — hedgehog toes and legs get tangled in them. |
| Enrichment & exercise | Healthy hedgehogs are very active and travel a long way at night, so a solid-surface exercise wheel (never an open-rung wire wheel — legs get caught) is strongly recommended. Add tunnels, safe climbing, hides and toys, hide food for them to forage, and let them out for supervised floor time in a safe, warm space. |
| Grooming & upkeep | Hedgehogs need little grooming, but they’re slow to trust and roll into a tight ball when nervous, so calm, daily, gentle handling from the start is what tames them. “Self-anointing” (frothing and smearing saliva on their spines when they meet a new smell) looks alarming but is completely normal. An occasional warm foot bath helps if their feet get soiled; check nails. |
| Diet | Feed a commercial hedgehog or insectivore food as the base; if you can’t get one, a high-quality weight-management cat or dog food is an acceptable alternative — ration it (roughly 3–4 tsp a day) because hedgehogs get obese easily. Add a little varied moist/protein food and insects daily (mealworms, gut-loaded crickets, cooked meat or egg, low-fat cottage cheese, a little canned cat/dog food) plus a small amount of vegetables/fruit. Hide insects in the bedding to encourage foraging. Never feed raw meat or raw egg (salmonella risk) or milk (it causes diarrhoea). Fresh water at all times; introduce any new food slowly, as they’re fussy about change. |
| Supplements | Not necessary for a hedgehog on a balanced commercial diet — don’t add vitamin or mineral supplements unless a vet advises it. |
🤎 Did you know? — Hedgehog fun facts
Little true delights about the hedgehog — each one checked against a named source, no pet-shop myths.
- A hedgehog is armoured in roughly 3,000–5,000 quills — modified hairs made of keratin, the same stuff as our own hair and nails.San Diego Zoo Wildlife Alliance
- Meet something new and a hedgehog may “self-anoint”, frothing up saliva and contorting to spread it all over its own spines.Animal Diversity Web
- Despite the cartoons, a hedgehog can’t shoot its quills — like our hair they only fall out or break, never fire like darts.San Diego Zoo Wildlife Alliance
What it's like to live with a Hedgehog
Living with a hedgehog is a quiet, nocturnal relationship. By day they’re curled up asleep in their hide; in the evening they wake, run their wheel and forage. New owners are often thrown by the huffing, the ball-rolling, and the bizarre self-anointing — all normal. The two things you can never relax on are warmth (a chilled hedgehog is a medical situation, not just a cold one) and weight/appetite, because their illness signs are vague and they hide being unwell until it’s advanced.
Your first month together
The settling-in period, in order — so you know what's normal and when not to worry.
- Set the enclosure up and prove the heating holds a steady 24–29°C on a thermostat before the hedgehog comes home.
- Confirm it’s legal (or that you have any required permit) where you live, and find an exotic/hedgehog vet.
- Handle gently and daily, in the evening when they’re awake, to build trust past the huffing and balling-up.
- Keep their existing diet at first and change it slowly; learn their normal weight and appetite and weigh them.
- Watch for any wobbliness, refusal to eat, or a cold/curled hedgehog — and act on it early.
Through the year, and as they grow
Temperature control is a year-round, non-negotiable job: cold snaps in winter and heat in summer can both trigger a dangerous torpor, so keep the thermostatically-heated range steady in every season. Unlike wild European hedgehogs, pet African pygmy hedgehogs cannot safely hibernate.
The pet store gets these wrong
Common myths, kindly corrected — no shame for having believed them.
- Pet African pygmy hedgehogs can’t safely hibernate. If yours goes cold and curls up unresponsive, that’s dangerous torpor — warm it gradually and see a vet, don’t “let it sleep it off.”
- They’re not a low-maintenance starter pet — they need constant warmth, a specific diet, patience to tame, and a specialist vet.
- A glass tank isn’t a good home — hedgehogs need ventilation, floor space and a secure lid.
- Hedgehogs are solitary, not social — they should be housed alone, not in pairs.
- Open wire wheels are dangerous — their legs get caught, so use a solid-surface wheel only.
- They’re not legal everywhere — some areas ban them or require a permit, so check first.
Before you buy
- Is it legal (or permit-allowed) to keep a hedgehog where you live?
- Can you reliably hold 24–29°C with a thermostatically-controlled heat source, year-round?
- Do you have an exotic vet experienced with hedgehogs within reach?
- Can you provide a large secure cage with a solid-surface wheel and deep bedding?
- Are you patient enough to tame a shy, prickly, nocturnal animal over weeks?
- Are you ready for a 4–6 year commitment and the risk of conditions like Wobbly Hedgehog Syndrome?
See a vet if…
We can't diagnose from afar — but these are the signs to stop watching and get a professional:
- Wobbliness, an unsteady or falling gait, or progressive weakness of the limbs — possible Wobbly Hedgehog Syndrome; see an exotic vet
- A cold, curled, unresponsive hedgehog (torpor) — warm it gradually and get advice urgently
- Lethargy, weakness, loss of appetite or weight loss — vague but often the only early signs of serious illness in hedgehogs
- Laboured or open-mouthed breathing (possible heart disease or pneumonia)
- Not eating with collapse or vomiting — a gut blockage from swallowed carpet, fibres or rubber
- Excessive quill loss, crusting, or red, flaky skin (mites are very common)
- Yellow tinge to the skin/eyes or a swollen belly, especially in an overweight hedgehog (liver disease)
Never
- Never let a hedgehog get too cold — or too hot — as both can trigger a dangerous torpor.
- Never house two hedgehogs together — they’re solitary.
- Never use a wire-floor cage or an open-rung wire wheel (legs get trapped), or a glass aquarium (poor ventilation).
- Never use loose string or fluffy cloth bedding.
- Never feed raw meat, raw egg, or milk.
- Never keep one without checking your local laws and permit rules first.
Common hedgehog questions
How hard are Hedgehogs to keep — are they good for beginners?
Intermediate. Quietly charming, but genuinely temperature-critical and a little medically demanding. African pygmy hedgehogs must be kept warm (a cold hedgehog can slip into a dangerous state), are solitary and nocturnal, take patience to tame, and are prone to specific illnesses like Wobbly Hedgehog Syndrome. They’re also illegal or permit-only in some places. Not a beginner impulse pet.
What do Hedgehogs eat?
Feed a commercial hedgehog or insectivore food as the base; if you can’t get one, a high-quality weight-management cat or dog food is an acceptable alternative — ration it (roughly 3–4 tsp a day) because hedgehogs get obese easily. Add a little varied moist/protein food and insects daily (mealworms, gut-loaded crickets, cooked meat or egg, low-fat cottage cheese, a little canned cat/dog food) plus a small amount of vegetables/fruit. Hide insects in the bedding to encourage foraging. Never feed raw meat or raw egg (salmonella risk) or milk (it causes diarrhoea). Fresh water at all times; introduce any new food slowly, as they’re fussy about change.
How big an enclosure do Hedgehogs need?
A single hedgehog needs its own secure, well-ventilated cage with a solid, escape-proof design — minimum floor space about 0.6 × 0.9 m (2 × 3 ft), and bigger is better. A large plastic storage bin or a single-level cage with a solid plastic base works; avoid glass aquariums (poor ventilation) and widely-spaced wire (legs can get trapped). A hide is essential, and the bedding should be deep enough (about 8–10 cm) in places for burrowing. They climb and squeeze out of small gaps, so a secure lid matters.
Do Hedgehogs need a companion, or can they live alone?
Hedgehogs are solitary and are kept one to a cage — they don’t need or generally want the company of other hedgehogs, and housing them together risks stress and fighting.
What temperature do Hedgehogs need?
This is the make-or-break factor. Keep the ambient temperature at 22–32°C, with 24–29°C ideal, using a thermostatically-controlled heat source such as an under-tank heat pad or a ceramic heater. Both too cold and too warm can push a hedgehog into an unhealthy torpor (a dangerous attempted “hibernation”). Keep humidity low (under ~40%), avoid bright light, and give a regular 12 hours light / 12 hours dark cycle.
What bedding and substrate do Hedgehogs need?
A soft, absorbent bedding such as recycled-paper bedding, aspen shavings, alfalfa pellets or hay, deep enough (8–10 cm) in some areas to burrow. Avoid rough, dusty or scented substrates, and never use loose string or fluffy cloth fibres — hedgehog toes and legs get tangled in them.
What enrichment and exercise do Hedgehogs need?
Healthy hedgehogs are very active and travel a long way at night, so a solid-surface exercise wheel (never an open-rung wire wheel — legs get caught) is strongly recommended. Add tunnels, safe climbing, hides and toys, hide food for them to forage, and let them out for supervised floor time in a safe, warm space.
What grooming and upkeep do Hedgehogs need?
Hedgehogs need little grooming, but they’re slow to trust and roll into a tight ball when nervous, so calm, daily, gentle handling from the start is what tames them. “Self-anointing” (frothing and smearing saliva on their spines when they meet a new smell) looks alarming but is completely normal. An occasional warm foot bath helps if their feet get soiled; check nails.
What supplements do Hedgehogs need?
Not necessary for a hedgehog on a balanced commercial diet — don’t add vitamin or mineral supplements unless a vet advises it.
How big do Hedgehogs get?
Small — males weigh about 400–600 g and females about 300–400 g, a body that curls into a spiny ball a little bigger than a large orange.
How long do Hedgehogs live?
Averages 4–6 years, and some reach 8 — longer than most people expect from such a small animal.
What are the signs Hedgehogs are sick or need a vet?
See a small-animal or exotics vet if you notice: Wobbliness, an unsteady or falling gait, or progressive weakness of the limbs — possible Wobbly Hedgehog Syndrome; see an exotic vet; A cold, curled, unresponsive hedgehog (torpor) — warm it gradually and get advice urgently; Lethargy, weakness, loss of appetite or weight loss — vague but often the only early signs of serious illness in hedgehogs; Laboured or open-mouthed breathing (possible heart disease or pneumonia); Not eating with collapse or vomiting — a gut blockage from swallowed carpet, fibres or rubber; Excessive quill loss, crusting, or red, flaky skin (mites are very common); Yellow tinge to the skin/eyes or a swollen belly, especially in an overweight hedgehog (liver disease).
Free tools for your hedgehog
Sources & further reading
This guide was written and fact-checked against these authorities. It's kind, general guidance — not a diagnosis or a substitute for an exotics vet:
- Merck Veterinary Manual — Overview of Hedgehogs — solitary/nocturnal, weight 300–600 g, lifespan 4–6 (to 8) yr, legality/permits
- Merck Veterinary Manual — Management of Hedgehogs — cage min 2×3 ft, 22–32°C (24–29°C ideal), solid wheel, insectivore/cat-food diet, bedding
- Merck Veterinary Manual — Diseases of Hedgehogs — Wobbly Hedgehog Syndrome, cardiomyopathy, GI obstruction, mites, hepatic lipidosis, neoplasia
Written and fact-checked by The Hayfold Team against veterinarian-authored sources — if your pet shows a red-flag sign above, see an exotics/small-animal vet promptly.