First: Rest Before Everything
The celebration can wait an hour; his recovery cannot. Put him straight back into his familiar cage — not a freshly deep-cleaned one, since his own scent is part of what settles him — with fresh water, his usual food, a favourite treat and deep bedding to burrow into. Place the cage somewhere quiet and dim and let him sleep through the day undisturbed, however much the household wants to visit him. A night loose means hours of exploring, climbing and probably fear; hamsters hide exhaustion well, and the kindest first treatment is darkness, quiet and no handling beyond the transfer itself.
The Gentle Once-Over, When He Wakes
When he emerges in the evening, do the health check with your eyes first. Watch him walk: stiffness, a limp, dragging a leg or favouring one side all matter. Look at his coat for bald patches, wounds, or anything stuck to him, and at his eyes and nose for discharge or dulling. Check his cheek pouches are not bulging with something he foraged — hamsters come home with pouches full of remarkable things, and anything unsuitable he is storing should be gently noted rather than dug out by force. If he tolerates it, a brief, calm hold lets you feel whether he seems thinner or bonier than before the escape.
Eating, Drinking and Droppings: The Next Two Days
The real recovery report comes from his routines. Is he drinking at his usual rate, eating his mix, and hoarding normally — a hamster who stuffs his pouches and stashes food is a hamster feeling secure. Are droppings normal in size and number, or scant and dry, which can follow a night without water? Is he on his wheel at his usual hour, or still hiding a day later? Write these observations down with the date; a short written log over two days is exactly what a vet will want if you do call, and it stops "seems a bit off" from being the only evidence.
When the Vet Check Is Prompt, Not Optional
Book a vet check soon — and phone the same day — if any of these apply: he was loose near cleaning chemicals, pest products, or another pet who may have caught him; he has any wound, however small, since cat contact in particular turns tiny punctures serious; he looks or feels dehydrated or has lost noticeable weight; his droppings stay abnormal; or he is simply not returning to himself after a couple of days of rest. Even a hamster who seems fine benefits from a routine check at his next appointment flagged with the escape, because a vet's hands can find what a relieved owner's eyes miss.
Close the Door He Opened, and Write It Down
Finally, do the two jobs that stop a repeat: find and fix the escape route — weigh the lid, clip the door, replace the gnawed corner — and record the incident while it is fresh: the date, roughly how long he was out, where he was found, and how he recovered. That short record belongs with his health history, and a KinsLe Pet Passport is where it stays useful, holding the escape and any vet check alongside his other records so a future vet or sitter sees the whole picture rather than a story half-remembered.