Syrian Hamster

Is a Syrian hamster right for you?

The Syrian hamster, also called the golden hamster, is the most widely sold rodent and is usually bought as an "easy animal for a child". Two facts need to be known from the start: it is nocturnal, and it must live alone. Those two points should change most purchasing decisions.

The most critical point: a Syrian hamster must be housed strictly on its own. This is not a preference but the nature of the species. Two sexually mature Syrian hamsters will fight fatally in the same cage. Littermates sold together in pet shops must be separated.

Before you adopt

Unlike guinea pigs and rabbits, the Syrian hamster must be bought alone. Do not take home littermates sold in the same pet shop cage; when they reach sexual maturity they fight fatally.

Sexing errors are common. Incorrect sex information is frequently given in pet shops, and keeping two hamsters together ends either in fighting or in unexpected litters. If you are not certain, have a vet confirm it.

In a healthy young hamster the eyes are bright and open, the nose is dry, the coat is smooth, and the area around the tail is completely clean. A wet tail area is a sign of an emergency illness; do not take any animal from that cage, as the whole group may be infected.

The animal should be at least four weeks old. A hamster forced awake from sleep may seem bad-tempered; make your assessment in the evening, when it is naturally awake.

Also look at rehoming groups; hamsters needing a new home because an owner gave up are far more common than people think.

Cage and living space

In this species the single most important factor for welfare is cage size. In the wild a Syrian hamster travels kilometres in a night and digs complex tunnels.

• Floor area: at least 4,000 cm² of uninterrupted floor (for example 100x40 cm). European welfare standards treat this figure as a minimum; bigger is always better. In multi-level cages the upper levels do not count toward this area.
• Bedding depth: at least 20 to 25 cm. Digging is this species' most basic behaviour; shallow bedding produces stress and repetitive behaviour disorders such as bar chewing and backflipping. Use paper-based bedding or dust-free aspen shavings. Do not use pine or cedar shavings, which damage the respiratory tract.
• Exercise wheel: at least 28 cm in diameter, enclosed and with a flat surface. A small wheel bends the spine; a wire wheel causes leg injuries.
• Nest: at least two hiding places, one of which can be multi-level. Provide paper towel pieces as nesting material; do not use cotton-based "nesting fluff", which tangles around the legs of both young and adults and causes intestinal blockage when swallowed.
• Sand bath: a special bath sand for rodents (chinchilla sand). Never use cat litter.
• Position: a quiet spot out of direct sun, away from draughts, with a steady temperature between 18 and 24 °C. A bedroom is unsuitable because of the night-time activity.

Spot-clean daily (the toilet corner) and change part of the bedding every one to two weeks. Do not clean the whole cage at once; the hamster loses its scent markings and becomes stressed. Mix some of the old bedding into the new.

Feeding

The Syrian hamster is omnivorous; in the wild it eats seeds, grains, and insects.

• Staple food (80-90%): a mixed feed or pellet made for hamsters. With a mixed feed the hamster may pick out its favourites and leave the rest; in that case a pellet is more balanced.
• Fresh vegetables (a small amount, daily or every other day): carrot, broccoli, cucumber, sweet pepper, purslane, lettuce leaves. In small pieces, removed after a few hours.
• Protein (once or twice a week): a piece of boiled egg, dried mealworms, plain boiled chicken. This is a genuine need for the species.
• Water: a drip bottle or a shallow bowl, changed daily.

Do not give: chocolate, onion, garlic, citrus fruit, almonds, avocado, sugary and salty human foods, dairy products, iceberg lettuce heart (causes diarrhoea).

Storing food in the cheek pouches is normal; it carries food to its nest and hoards it. This store should not be cleared out completely, only spoiled fresh food removed.

Avoid sticky foods. Sticky items stick in the cheek pouch and cause inflammation.

Health and lifespan

Average lifespan is 2 to 3 years. The short lifespan is a fact that families with children in particular should know before adopting.

Signs that mean a vet visit:

• A wet tail area and watery diarrhoea
• Loss of appetite, weight loss, inactivity
• Difficulty breathing, wheezing, nasal discharge
• Wet or stuck-together eyes
• Swelling or a lump on the body
• Loss of balance, circling, paralysis
• Hair loss, itching, crusting

Common diseases:

• Wet tail (proliferative ileitis): severe diarrhoea seen in young hamsters, linked to stress and bacterial infection. It can be fatal quickly; go to a vet as soon as signs appear.
• Dental problems: the incisors grow throughout life. If they do not wear down, difficulty eating and injury follow. Safe wood and hay for gnawing should always be available.
• Cheek pouch problems: food impaction or eversion of the pouch. Veterinary intervention is needed.
• Tumours: common in old age.
• Bumblefoot (sores on the soles): caused by wire flooring or dirty bedding.
• Heart disease and amyloidosis: seen in older individuals.
• Hibernation-like torpor: if the environment falls below 5 to 10 °C the hamster may become immobile; this can be mistaken for death. The environment should be warmed slowly. Keeping the temperature steady prevents it.

Handling and taming

A hamster learns to accept handling, but this takes time. Biting is almost always caused by fear or by being woken.

1. Do not touch it for the first three to five days. It needs to settle into a new environment. Provide food and water and watch quietly.
2. Getting to know your voice. Talk calmly beside the cage so it gets used to your voice.
3. Feeding by hand. Offer a seed in your palm. Wait for it to come and take it; do not try to grab it.
4. Lifting into the palm. When it starts to approach, lift it supporting it from below with both palms. Grasping from above is a predator movement and frightens it.
5. Short sessions. Two or three minutes at first, increasing gradually. Always while it is awake; never wake a sleeping hamster.
6. Stay low. A hamster cannot judge distance and may jump from your hand. Work over a bed or a carpet.

A note for children: the Syrian hamster is fragile and cannot survive a fall. Children under eight should hold one only under adult supervision and while seated.

Enrichment

The contents of the cage matter as much as its size:

1. A deep digging area. At least half the bedding should be 20 cm or more deep; digging tunnels is this species' most basic need.
2. Tunnels and bridges. Cardboard tubes, wooden tunnels, ceramic hides.
3. Foraging. Scatter food in the bedding rather than putting it in a bowl; this triggers natural behaviour.
4. Gnawing material. Apple branches, hay, untreated wooden blocks.
5. Change. Rearranging the layout once a month (without erasing the scent entirely) keeps curiosity alive.
6. Free-roaming time. In a safe, enclosed area under supervision, with escape points and cables checked. Plastic exercise balls are not recommended; ventilation is inadequate and the hamster cannot see where it is going.

History and life in the wild

The Syrian hamster (Mesocricetus auratus) lives naturally in a narrow region of northern Syria and southern Türkiye. In the wild it lives alone in arid steppe, in deep tunnel systems it digs itself, making contact with another individual only to mate. The requirement to live alone in captivity comes precisely from that behaviour.

It was introduced to science in 1839 but was long considered lost. In 1930 the zoologist Israel Aharoni found a female and her young near Aleppo; the colony bred from those individuals, taken to Jerusalem, is the ancestor of almost every domestic Syrian hamster in the world today.

It spread as a laboratory animal in the 1940s and then entered the pet trade. Its wild population is now threatened by the expansion of farmland; the IUCN has assessed the species as vulnerable.