A back brace is a supportive device worn around the torso to help stabilize the spine and reduce pain. It is often used for conditions like scoliosis, herniated discs, or after spinal surgery. Back braces can be made from various materials, including fabric and plastic, and are designed to limit movement while providing comfort. These braces come in different styles, such as corsets or lumbar supports, depending on the specific needs of the user. They can be prescribed by a healthcare professional and are typically used in conjunction with physical therapy or other treatments to promote healing and improve posture.