If a wisdom tooth extraction was done without anesthesia, would anything bad happen?

A lot of pain: It would be a painful procedure. Some kind of anesthetic would be beneficial. The doctor would have a lot easier time extracting the teeth if the patient was comfortable.

No: The worst concern about any surgical procedure is bleeding from the surgical site. Doing this procedure without at least some local anesthetic would be extremely uncomfortable. My wisdom teeth were removed with valium and a local anesthetic. I have no recollection of the procedure.

It could: Having a tooth removed, especially an impacted wisdom tooth removed without any form of anesthesia could be a very uncomfortable experience. You might feel like hitting your dentist afterwards.

Not recommended: dental extraction without anesthetic. Moreover, IV sedation is recommended for wisdom teeth extraction. Ask your dentist or surgeon for more information.

Undoubtedly: Severe pain for the patient, with the likelihood of compromised treatment due to the inevitable thrashing of the patient. Especially problematic if it was impacted and had to be cut out. Also more bleeding during and after the extraction. A loose, periodontally involved tooth with little bone support could be removed without anesthesia without nearly as much pain.

Sedation: oral surgeons will use a method of anesthesia called sedation. You may not require general anesthesia where you go to sleep and a breathing tube is placed. But you will get intravenous medication and intravenous fluid. The medication works well but you should ask the dental surgeon any questions you have. If you have medical conditions clear it with your doctor too.