Caudal anesthesia is a type of regional anesthesia that is primarily used for surgeries of the lower body, such as those involving the lower back, pelvis, and legs. It is also known as caudal block or sacral block. However, there are several other synonyms for caudal anesthesia that are commonly used in medical literature and discussions. These include sacral epidural anesthesia, coccygeal nerve block, lumbosacral block, and subarachnoid blockade. Each of these terms refers to the administration of an anesthetic agent in the lower back area, with the goal of providing pain relief and diminishing sensory perception in the targeted surgical area.