did you know that [Did you know that?] Your brain can't feel pain.

[Dude1x3]

It processes pain for your body, but the brain itself has no pain receptors.

1. The brain is made to process pain, not feel it
2. Other parts of the head do feel pain
3. This is why brain surgery can happen while you’re awake
4. Evolutionary reason
 

The brain is well-protected by the skull and fluid, so it didn’t need built-in pain sensors.
Pain is usually meant to warn you about damage — the brain has other ways to protect itself.

SOURCE