A splint is a medical device used to immobilize and support a broken or injured limb. It helps to keep the affected area stable, reducing pain and preventing further injury. Splints can be made from various materials, including plastic, metal, or wood, and are often used in emergency situations or during the healing process. Splints are commonly applied to injuries involving bones, such as fractures, or soft tissue injuries like sprains. They can be temporary or permanent, depending on the severity of the injury. Proper application of a splint is essential for effective treatment and recovery, often requiring guidance from a healthcare professional.