Of course you should. Maybe it can be treated.
Even if it can't be treated, it's better to have the veterinarian kill the hamster gently and quickly than to let it die slowly and in pain.
you should ask your local vet about that...
it could be both you should take it to see a vet
hamster tumors are just the same as a humans. When you start to feel small or large bumps on a hamster you will know that its a sign and you should immediately take your hamster to the vet, and they will see what they can do, or if your hamster is in pain, they can put your hamster to sleep humanely.
you should definitely take her to the vet. If she has a hole in her stomach it could possibly be a tumour. Take her to the vet really quickly. Better safe than sorry.
I would not attemp to remove the tumor myself (one of my hamsters had a tumor) but to take it to a vet to have it surgically removed if they think necessary.
A tumor on a hamster can appear as a visible lump or swelling on the body. The tumor may vary in size and shape, and it can be either firm or soft to the touch. A vet should examine any abnormal growth on a hamster to determine if it is a tumor and assess appropriate treatment options.
You should take it to the vet or it will die.
Get a licensed vet to take a look at it.
If you think it is blind you probably should take it to a vet
Take her to a vet!
Then you should probably take it to the vet.
Yes.maybe you should take your hamster he vet.