HYPNOSIS FOR SURGERY
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Hypnosis trance has been used as a form of analgesia to carry out surgery on patients. It was frequently used at the end of the 19th century and the beginning of the 20th century before the anesthetics were discovered. It is also used today for surgery in certain cases. 
In the 19th century a tumor weighting more than 100 pounds was removed from a hypnotized patient, without the patient feeling any pain.

In 1994, Andy Bryant from Great Britain used hypnosis for pain control for his vasectomy, without anesthesia. He did not feel any pain during his operation.

For more information on Hypnosis for Surgery watch the following video:

Hypnosurgery Live - Nov 23, 2006