For the most part, patients are only operated on when they cannot be treated in other ways. The ability to eradicate an otherwise intractable problem provides the "sense of accomplishment" in surgery, and that is what attracts people to the field.
通常需要接受外科手術的病人，都是無法用藥物或其他方式治癒的病人，外科徹底解決病人問題帶來的「成就感」，確實是它迷人之處。