Bear is a cute doggie.
It's good that you have taken a picture of the bump so that you can see how it progresses.
When my Labrador dog was approaching her senior years, she got the occasional bump on her face. A couple of them were the size of a wart and stopped growing, but one was on her eyelid and had to be removed. It was not cancerous.
The vet can insert a needle into the bump and withdraw some fluid for a cancer check.
If it is not cancerous you can leave it for a while and see how it does.
The dog may start scratching at it though, and when the bumps start to bleed, they can bleed quite a bit.
Then removal is definitely a good idea.
Please have pets spayed and neutered,
and wearing a collar with an ID tag.