My Syrian Hamster’s Belly Is Swollen After Overeating – Is It Bloat or Diarrhea?

A swollen hamster belly often comes from overeating, causing food buildup and gas. Stop feeding, give some lactase from a pet store, and gently rub the abdomen to aid motility; if there is no improvement, see a vet, as wet tail, ascites, or a tumor could also swell the belly.

With wet tail or ascites the belly is soft and bulging; a tumor feels like a hard mass. If anything seems wrong, get a basic exam at the clinic soon.