Hamster care guide

Hamsters are tiny, but their needs are not.

Hamsters are fascinating, intelligent little rodents with individual personalities and a strong need to explore, dig, forage and nest. They may be small, but they are not simple cage pets.

They are usually most active at night and in the early morning, need to live alone, and require a large, enriching indoor enclosure with deep bedding, a safe wheel, a sand bath and plenty to do.

All domestic hamster species should be housed alone.

Hamsters are solitary animals. Keeping them together can lead to stress, fighting, injury or death, even if they seem fine at first.

Hamster at Greatfield Small Animal Rescue
Hamster care at a glance 100 x 50cm minimum. Alone. Indoors.

Plus deep paper bedding, a large solid wheel, sand bath, safe enrichment, fresh water and suitable hamster food.

Hamster basics

Before you bring a hamster home, understand their natural behaviour.

Hamsters are nocturnal or most active overnight and early morning. They are not ideal pets for small children because they are usually asleep when children are awake and are delicate to handle.

They are night-time animals

Hamsters are most active during the night and early morning.

They must live alone

All domestic hamster species should be housed individually.

They live around 2โ€“3 years

This is an average, and good care helps them live as well as possible.

They need stable warmth

Hamsters are sensitive to temperature and must be kept indoors.

Syrian The largest and most common domestic hamster.
Roborovski Very small, fast and often more watch-than-handle.
Winter White A dwarf species with quick, busy behaviour.
Campbell A dwarf hamster who still needs to live alone.
Chinese Small, agile and often shy without patient handling.
Diet & nutrition

Hamsters are omnivores and need variety.

Hamsters need a good-quality, complete hamster food as the base of their diet. Different species may have slightly different needs, especially dwarf hamsters, so it is important to choose a suitable mix rather than relying on colourful low-quality foods.

They can also enjoy small amounts of suitable vegetables, forage and protein-based treats. Treats should be offered carefully and in moderation.

  • Feed a complete hamster food suitable for the species.
  • Offer small amounts of safe vegetables and forage.
  • Protein treats can include suitable insects, mealworms or small amounts of boiled egg.
  • Fresh, clean water should always be available.
  • Use treats sparingly, especially sugary foods and fruit.
  • Research new foods before feeding them.
Hamsters pouch food.

They naturally carry food in their cheek pouches and store it in hoards. Always check hoards for fresh food that could spoil.

Hamster diet and nutrition guide
Accommodation & environment

A hamster cage should be large, secure and escape-proof.

Hamsters need a wide, floor-based enclosure with enough room for deep bedding, a large wheel, hides, tunnels, forage areas and enrichment. Tall cages with lots of height can be risky because hamsters can fall and injure themselves.

The minimum recommended enclosure size is 100cm x 50cm, but bigger is always better. Suitable options may include large barred cages, glass tanks, wooden enclosures or plastic enclosures with proper ventilation.

  • Minimum recommended size: 100cm x 50cm.
  • Keep hamsters indoors in a room with a stable temperature.
  • Temperature should be roughly 18ยฐC to 26ยฐC.
  • Humidity should be around 40%.
  • Avoid very tall setups where falls are likely.
  • Make sure the enclosure is secure and escape-proof.
Hamsters can enter torpor if they become too cold.

This can look like hibernation and they may be mistaken for dead. Temperature stability is extremely important.

Hamster accommodation and environment guide
Keeping clean

Clean carefully without destroying their whole world.

Hamsters rely heavily on scent. Over-cleaning can be stressful because it removes the smells and nest areas that help them feel secure. Cleaning should be regular, but calm and considered.

Spot clean wet areas and remove old fresh food regularly. When you do a bigger clean, keep back some clean old bedding and scatter it into the fresh bedding so the enclosure still smells familiar.

  • Spot clean urine areas regularly.
  • Remove fresh food before it goes mouldy.
  • Check hoards for anything that could spoil.
  • Do not remove all bedding and nest material unless absolutely necessary.
  • Keep some clean old bedding back after bigger cleans.
  • Never get a hamster wet or bathe them in water.
Sand baths help keep coats clean.

Hamsters groom themselves and should never be washed in water. A suitable sand bath can help maintain their coat naturally.

Hamster keeping clean and sand bath care
Enrichment

Hamsters need a busy, naturalistic enclosure.

Hamsters are active, inquisitive and built to explore. A bare cage with a tiny wheel is not enough. They need lots of enrichment to dig, climb safely, hide, forage, chew, tunnel and make choices.

A safe wheel is essential. It should have a solid running surface and be large enough that the hamsterโ€™s back stays straight while running.

  • Use a solid wheel: at least 28cm for Syrians and 20cm for dwarf species.
  • Avoid wire wheels because feet and legs can get trapped.
  • Provide hides, tunnels, cardboard items, cork logs and safe chew toys.
  • Scatter feed to encourage natural foraging.
  • Use deep bedding to allow digging and burrowing.
  • Avoid hamster balls, as they are no longer recommended.
Hamster enrichment guide
Bedding

Deep, safe bedding lets hamsters dig and nest properly.

Hamsters love to make nests and burrows. They need plenty of safe, paper-based bedding so they can dig, build tunnels, hide food and sleep securely.

It is not recommended to use wood shavings or sawdust because they can irritate delicate respiratory systems. Cotton wool style bedding should never be used, even if marketed as safe.

  • Use deep paper-based bedding such as Fitch, Carefresh or Megazorb.
  • Provide enough depth for digging and nesting.
  • Avoid sawdust and dusty wood shavings.
  • Never use cotton wool or fluffy nesting material.
  • Provide paper nesting material and hay for structure.
  • Keep some clean old bedding when cleaning to reduce stress.
Cotton wool bedding can be fatal.

It can wrap around limbs, cause blockages if swallowed, get stuck in pouches and contribute to injury, infection or illness.

Hamster bedding guide
Handling

Trust takes time, especially with tiny, fast hamsters.

Many hamsters can become comfortable with gentle handling, but they are small, delicate and can be fast. Dwarf species, especially Roborovskis, can be very wriggly and may be more suited to watching than frequent handling.

Hamsters do not have brilliant eyesight, so they may accidentally nip if your hands smell of food. Children should only handle hamsters with adult supervision, and sleeping hamsters should never be woken up just to play.

  • Build trust slowly and let the hamster approach you.
  • Use a mug, tunnel or box for safe lifting if they are nervous.
  • Wash hands before handling so they do not smell like food.
  • Handle low over a soft surface in case they jump.
  • Never wake a sleeping hamster to handle them.
  • Always supervise children closely.
Out-of-cage time should be supervised.

Hamsters enjoy exploring, but the area must be escape-proof, safe from other pets and free from chew hazards.

Hamster handling and trust
Medical needs

Small animals can become seriously unwell very quickly.

Hamsters do not usually need neutering because they should live alone. Procedures under anaesthetic can carry risks, especially for such small animals, so surgery should always be discussed with an experienced vet.

Hamsters can be prone to wet tail, dental problems, lumps, injuries, skin issues, respiratory problems and age-related changes. Because they are prey animals, they may hide illness until they are already very unwell.

  • Check daily for changes in eating, drinking, movement and behaviour.
  • Look for wetness or mess around the bottom.
  • Monitor breathing, coat condition, lumps and injuries.
  • Check nails and teeth where possible.
  • Use an exotic or small-animal-savvy vet where available.
  • Seek help quickly if your hamster seems quiet, weak, cold, wet, hunched or unlike themselves.
Wet tail can be fatal if untreated.

If you notice diarrhoea, wetness around the rear, lethargy, poor appetite or sudden weakness, contact a vet as soon as possible.

Hamster medical care
Quick questions

Common hamster care reminders.

These are the things we wish every hamster owner knew before bringing a hamster home.

Can hamsters live together?

No. All domestic hamster species should be housed alone. Even if a pair seems fine at first, they can suddenly fight and cause serious injuries.

How big should a hamster cage be?

The minimum recommended enclosure size is 100cm x 50cm. Bigger is better, especially if it allows for deeper bedding, a suitable wheel and more enrichment.

Do hamsters need a sand bath?

Yes, a suitable sand bath helps hamsters keep their coats clean. They should never be bathed in water unless a vet specifically advises it.

Are hamster balls safe?

Hamster balls are no longer recommended because they can be stressful, restrict choice and increase the risk of injury. Supervised free-roam in a safe area is better.

Can I wake my hamster up to play?

No. Hamsters should not be woken from sleep for handling. They are nocturnal, so interaction needs to fit around their natural waking times.

When should I call a vet?

Contact a vet if your hamster has diarrhoea or wetness around the bottom, stops eating, seems weak, cold, hunched, has breathing problems, injuries, lumps, dental symptoms or any sudden change that worries you.

Need help with hamster care, adoption or rehoming?

Whether you are preparing to adopt, improving your setup, worried about your hamster, or need kind, practical advice, please get in touch. We are here to help where we can.

Greatfield Team

Greatfield Team

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