Hyperhidrosis surgery is taught very minimally, if at all, in surgical training programs. It is done infrequently around the world but over the years a group of surgeons develops an affinity to this subject and at present they are the leaders in performing such surgeries. Dr. Reisfeld is one of these leaders who has been involved with the procedure since its pioneering days. Thoracic sympathectomy is known and performed by more able surgeons but again one should look for somebody who has extensive experience and knowledge with this procedure. Lumbar sympathectomy on the other hand is only performed proficiently by a handful of surgeons. It is a very challenging operation technically and requires proctoring for any surgeon who tries to do it for the first time. Again in this case the procedure is seldom done on a routine basis by any doctor. Here deep knowledge about the surgeon performing the operation should be obtained.