Syrian hamster behavior refers to the ethology of the Syrian hamster (Mesocricetus auratus).Interactions between male and female Syrian hamsters are influenced by the estrous cycle - in addition, their behaviour changes over the course of the 4-day cycle.
When a hamster's behavior changes drastically after a cage cleaning even when measures are taken to minimize stress, what do you do? A couple of weeks ago I did some full/almost full cleaning of all three enclosures to find hidden urine, spoiled food, and to just generally freshen things up. Mr. Puff (one of my syrians) was always timid. Hoarding is a common behavior in hamsters, and is characterized by the animal collecting and storing large amounts of food or other items. This behavior is most often seen in wild hamsters, who need to store up supplies for the winter months. Did you clean the cage, rearrange furniture in the room, change food brands, adjust the light schedule, or introduce a new scent source near the enclosure? Hamsters are sensitive to environmental changes that seem trivial to humans, and behavioral shifts often track directly to a recent change that disrupted the hamster's established routine or ...
full cage clean should be done every 1-2 weeks, depending on the size of the cage and how messy your hamster is. Spot cleaning, including removing spoiled food from the hoard, should be done every 1-2 days.

Solving common hamster behavior problems: cage biting, aggression, stress signs, refusing food, repetitive behaviors, and when to see a vet.
Hoarding is a natural behaviour for hamsters, and disrupting their hoards can cause them stress. Hamsters have an instinct to hoard food, even if they are domestic pets with a constant supply of food.

Did you clean the cage, rearrange furniture in the room, change food brands, adjust the light schedule, or introduce a new scent source near the enclosure? Hamsters are sensitive to environmental changes that seem trivial to humans, and behavioral shifts often track directly to a recent change that disrupted the hamster's established routine or ...
#Hoarding@change-cleaning-service-centerThey Warned Us, But We Still Cleaned This Terrifying Carpet...
Food-deprived/refed hamsters were allowed to recover baseline hoarding levels for 14 d after refeeding in which they either had all pellets removed from or received 100 fresh pellets into their burrow cage daily.