get surgery = undergo surgery 수술을 받다

get acupuncture treatment

get cupping treatment

He hurt his back and --   seems to have severe pain.

I went to an - oriental doctor -- and acupuncture treatment

I might have to - get surgery -- on my back

A: Oh, my Back hurt -- so much. I can't sit up  properly.

B: Why don't you go see a doctor? 

A: I've already done that -- She told me that I might have to undergo surgery

B: Oh no! --

Is it that bad?