Anesthesia refers to a state of controlled, short-term loss of awareness or sensation that is induced for medical and veterinary purposes. It may include some or all of the following symptoms such as amnesia, analgesia, unconsciousness and paralysis. There are four main types of anesthesia including general anesthesia, local anesthesia, regional anesthesia and sedation. Anesthesia could also be utilized in various situations such as surgeries, childbirth or other procedures like colonoscopies. It enables people to have procedures that allow them to live lengthier and healthier lives. Pain medicine is a subspecialty of anesthesia that focuses on successfully managing acute and chronic pain caused by a variety of factors. This book is compiled in such a manner, that it will provide in-depth knowledge about the role of anesthesia for pain management. It presents researches and studies performed by experts across the globe. The readers would gain knowledge that would broaden their perspective in this area of medicine.