Yes you can chew gum before surgery as long as you do not swallow the gum.
If you swallow the gum before surgery then that counts as eating and then surgery will have to be postponed unless it's an emergency surgery.
As long as you take the gum out of your mouth before surgery it's perfectly fine to chew gum before surgery.
I've chewed gum right before my surgery as gum when chewing it calms and relaxes me.
I just made sure to remove the gum a few minutes before surgery and the surgery went just fine.
You also need to fast at least 8 hours before surgery but chewing gum is okay.
After surgery you will be moved to a recovery room in the hospital and you'll stay in the recovery room for between 45 minutes to as long as 2 hours while the doctor will check in on you and make sure there are no complications.
After 45 minutes to 2 hours in the recovery room you'll be moved to another room if you need to stay in the hospital.
After some surgeries you may be released from the hospital within a few hours of surgery depending on the surgery you had.
If you're released from the hospital the same day you need to have someone drive you home because you may still be groggy for at least 24 hours after the surgery.
After your surgery is done the doctors will give you a medicine to counteract the anesthesia they give you to put you to sleep.
When that medicine is given to you then you should begin waking up within about 5 to 10 minutes of the medicine being given to you.
So after surgery you should begin waking up 5 to 10 minutes after and while you're waking up the doctors in the hospital will move you from the surgery room to a recovery room.
In that recovery room the doctors will check on you and you'll begin waking up fully and sometimes you may wake up in the recovery room and not remember you were in the surgery room to begin with.
It can then take 8 hours or so before you become almost fully awake because you can still feel groggy for at least 24 hours after the surgery.
It can 24 hours for the anesthesia to fully get out of your system and for you to be fully awake and alert.