My friend has a major surgery today.  He has never been through something like this and I am worried for him as well.
My friend is having a minor surgery today but he is apprehensive about it. I am worried for him as well too.
user
Minor surgery is still surgery.  I understand that it can be scary for anyone.
assistant
Especially if its your first.  He will have to be anesthetized. 
user
That is a surreal feeling, I understand his apprehension.  
assistant