How to Care for a Hamster: Housing, Diet, and Handling

Vet-reviewed via PetHealth+ · Last reviewed June 2026

Hamsters need a **large enclosure** with **deep bedding** for burrowing, a **species-appropriate wheel**, and **Syrian hamsters must live alone**. They are **most active at night**, eat a commercial hamster mix with occasional veg, and tame best with **patient, treat-based handling** after a settling-in period.

Choosing a hamster

Syrian (golden) hamsters are the largest common pet hamster and must be housed alone after weaning. Dwarf species — Campbell’s, winter white, Roborovski — are smaller and sometimes kept in same-sex pairs, but fighting can occur without warning. Research the species before buying; temperament and lifespan vary (Roborovskis can live 3–3.5 years; Syrians often 2–2.5 years).

Housing and enrichment

Minimum recommended floor space is roughly 80 × 50 cm, with height for deep substrate. Wire floors hurt feet — choose a tank-style enclosure or cage with a solid base. Provide 15 cm or more of paper-based bedding for digging. A wheel is essential; it must have a solid running surface and be large enough that the back does not arch (Syrians often need 28 cm+ diameter). Add tunnels, chews, and multiple hides. Avoid wire wheels and small “starter” cages.

Diet

Feed a quality hamster mix daily in a shallow dish, removing uneaten fresh food before it spoils. Small amounts of veg (carrot, broccoli, cucumber) and occasional mealworms or boiled egg provide variety. Fresh water from a bottle checked daily. Avoid chocolate, citrus, onion, garlic, and sticky foods that lodge in cheek pouches.

Handling and behaviour

Hamsters sleep deeply during the day — disturbing them causes stress and bites. Interact in the evening. After arrival, leave your hamster undisturbed for 48–72 hours except for feeding. Offer treats from flat palms, then scoop gently with both hands cupped. Never grab from above or wake suddenly. Cheek pouches can store surprising amounts of food — this is normal.

Health concerns

Hamsters decline quickly when ill. Watch for:

Wet tail ( diarrhoea — veterinary emergency in young hamsters)
Reduced appetite or activity
Overgrown teeth (drooling, weight loss)
Lumps or hair loss (mites)
Respiratory noise or discharge

Locate an exotics vet before you need one.

Frequently asked questions

Should hamsters live together?

Syrian hamsters must live alone — they fight to the death. Some dwarf species tolerate same-sex pairs if introduced young, but separation is often needed.

How big should a hamster cage be?

Aim for at least 80 × 50 cm floor space with deep bedding for burrowing — many commercial cages are too small.

What bedding is safe for hamsters?

Paper-based or aspen shavings work well; avoid cedar, pine, and cotton 'fluffy' nesting material that can cause blockages.

When are hamsters awake?

Hamsters are crepuscular/nocturnal — most activity is at dusk and night, which suits some owners but not light sleepers.