Surely there must be a way to pile your beard away from the surgical site... however I'm sure concerns involve a sterile environment.
I'd offer the comfort of 'it'll grow back' but I know how long it will take. I think the best advice I can offer is to dye your hair black or shave your head so no one recognizes you at all
for the next several years. At least you won't have to hide.
A friend, whose hair cascaded down to her waist for her entire adult life, lost it all to chemotherapy. Though she now looks great in short hair, she lost part of her identity. All humor and sarcasm aside, I understand this is more than the loss of hair.
Well, with this sacrifice, all I can say is this surgery had better damn well be successful!!!!
Dale
PS - you might ask them to wait until you're out to shave it off so you don't feel any of the cold steel on your virginal skin.