Epidural anaesthesia is a type of anaesthesia used during childbirth and surgery that numbs a specific region of the body. There are several synonyms for the term "epidural anaesthesia", including epidural block, epidural injection, and epidural steroid injection. Other synonyms for epidural anaesthesia may include spinal block or spinal injection. This type of anaesthesia may also be referred to as regional anaesthesia or local anaesthesia, depending on the specific procedure being performed. While epidural anaesthesia has become a popular choice for pain relief during childbirth, it is also commonly used during surgeries such as hernia repairs or knee replacements.