Hamster vomit?

Question
My hamster threw up. He's acting normal and staying active. Should I bring him to the vet? What are some reasons why this might have happened?

Answer
Hello, he may have had something that didn't agree with him. If he throws up again take him to a vet to get looked at. Some reasons why they throw up is because they ate something that didn't agree with them or they may have not been feeling well and their body got rid of whatever was making them ill. If your hamster keeps throwing up though take him to the vet then. Just monitor him and he should be fine.