Medfags: Knocked out during Hair Transplant Surgery

No.11878556 ViewReplyOriginalReport
no idea what board to ask this and cant find answers online.
But why in the name of fuck do doctors have to inject 100 needles in your head for hair transplant instead of being knocked out like regular surgery....
I couldnt do it /sci/. The first needle that went into my head was so painful, i felt like vomitting, screeched ouch and violently jumped forward and had to quit upon hearing needing many more.

Why cant doctors just knock patients out for any type of surgery? The other method is worse than death itself