Hamsters are often bought as easy first pets, yet the RSPCA describes needs that are specific and often missed: deep digging bedding, a very large cage, a properly sized wheel, quiet daytime sleep and, for most species, life alone. This guide summarises the RSPCA’s hamster advice, with cage and wheel measurements from PDSA and Blue Cross. It is general welfare information, not veterinary advice; a vet should be asked about any change in a hamster’s health. It follows this site’s guides to keeping gerbils and to guinea pig housing.
Where a hamster should live
The RSPCA says hamsters must be kept indoors, in a comfortable, dry, clean place that is quiet enough to rest undisturbed and free of draughts and damp. Indoor housing also prevents a torpor state that can be dangerous because pet hamsters do not have the fat reserves to survive long without food. Hamsters need predictable lighting, with lights going off at about the same time each night, and the RSPCA advises housing them away from televisions, computer screens, vacuum cleaners and running water, because they are sensitive to high-frequency sounds humans cannot hear and can find them stressful.
Cage size, floor and bedding
The RSPCA does not give a floor measurement, but says to use the largest cage possible. PDSA cites a minimum of 100cm by 50cm from the Veterinary Association for Animal Welfare, which it says is based in Germany, noting that it is a minimum and that bigger is better, and Blue Cross gives the ideal as no smaller than 100cm by 50cm of floor space and 50cm tall. PDSA adds that single-level cages suit better than tall multi-level ones because hamsters have poor eyesight and can fall.
On construction, the RSPCA says plastic cages are better than metal, that wooden cages should not be used, and that the floor should be solid, because wire mesh floors can lead to foot problems. Bedding must be deep enough to dig and burrow in. The RSPCA names dust-free wood shavings or granulated corn-cob, free of preservatives or chemicals, as a good compromise, and says peat discolours the coat. For nesting, it suggests good-quality hay, wood wool, shredded paper or cardboard, and warns against cotton wool and other fluffy bedding that separates into thin strands, because it can cause harm if eaten or become tangled around limbs.
Hiding places, wheels and daily routine
The RSPCA says each hamster needs a dark nest box big enough to sleep in, store food and move around, and that for hamsters kept in pairs the number of hiding places should exceed the number of animals by one. Wild hamsters are active at dusk and night and can run up to five miles a day, so the RSPCA recommends a running wheel that is solid, axle-free, large in diameter, such as one intended for rats, and ideally with a non-slip running surface. It stresses that a wheel should not be the only enrichment.
PDSA warns that many wheels sold with cages are too small and force a hamster to run with a curved back, which can cause long-term pain. Blue Cross says a hamster should be able to use a wheel without curving the spine or raising its head, and that wheels with spokes or mesh should be replaced because feet can become trapped.
Company and handling
The RSPCA says hamsters are generally solitary. Syrian and Chinese hamsters are not naturally sociable and should always live alone. Dwarf species such as Roborovski, Campbell’s Russian and winter white hamsters can sometimes live in pairs or trios if the group is formed early in life and is stable, but the RSPCA adds that even they do not need company and may fall out later, in which case they must be separated permanently. It strongly advises against mixing species and sexes, and says to keep unfamiliar hamsters apart even in separate cages, because scent can cause stress.
For handling, the RSPCA advises letting the hamster investigate hands in its own time, scooping it with both hands to sit on joined palms and holding it only a few inches over a stable surface. It should not be handled while resting or sleeping unless absolutely necessary, and it must never be left out unattended. PDSA recommends that children be supervised and ideally feed treats and stroke the hamster in its cage rather than lifting it, and gives a typical lifespan of two to three years.
Feeding
The RSPCA recommends a compound pellet ration or a mixture of seeds formulated for hamsters, with small quantities of greens, cleaned root vegetables and pieces of fruit such as apple. It says grapes and rhubarb should not be given because they can be poisonous to rodents. Wet or powdered food should only be offered if a vet advises it. Fresh water should always be available from a bottle with a valveless sipper tube, checked daily for leaks. If a hamster eats less, has moist droppings or a soiled rear end, the RSPCA says to talk to a vet immediately.
FAQs
Can two Syrian hamsters live together?
No. The RSPCA says Syrian hamsters should always live alone because they are not naturally sociable.
Is a hamster a good pet for a young child?
PDSA says children should be supervised and ideally should not hold hamsters, which can bite and are easily injured by rough handling.
The bottom line
The RSPCA’s hamster guidance comes down to space, depth and quiet: the biggest solid-floored cage available, deep digging bedding with safe nesting material, a correctly sized solid wheel, a dark nest box, predictable lighting and daytime sleep left undisturbed. Syrian hamsters live alone, dwarf hamsters only conditionally share, and any change in eating or droppings is a reason to contact a vet promptly.
Sources
- Creating a Good Home for Hamsters (rspca.org.uk)
- Understanding hamster behaviour (rspca.org.uk)
- Keeping Hamsters Together (rspca.org.uk)
- What To Feed a Pet Hamster (rspca.org.uk)
- Hamsters as pets (pdsa.org.uk)
- Hamster Care (bluecross.org.uk)