Dried blood on hamster's tail

[keiiiii]

Description of Ailment:
I noticed what seems to be dried blood spots in the cage, checked my hamster and saw that its tail had dried blood on it. Should I be worried and bring him to the vet? Or should I monitor to see if there are any new additional blood stains before doing so? I'm just hoping he accidentally bit his tail until it bled.

His behavior and eating habits are normal, no changes so far.

Images:
b2b4beeb-b4c4-4fc0-8b21-85fd7b71da31 — ImgBB
9c6b5858-e817-431a-b0c8-2075d83d8dac — ImgBB
17132023-7434-4404-9d9c-3d7791386260 — ImgBB

Here is information about my hamster -
Age: 10 months
Gender: Male
Species: Winter White Dwarf

These are the details of my hamster's ailment -
When did it start: Yesterday

[Lilafernim]

Hi,

I would definitely get him taken to a vets ASAP. Hamsters are prey animals so they may act normal but really be in pain and hiding it.

Especially with blood I wouldn’t mess around, as it could be something really bad. Hopefully it’s nothing major but from your pictures something has clearly gone wrong and requires a vet as soon and possible