Burn bandage

Burns are injuries to the skin or body tissue that may be caused by contact with heat, electricity, chemicals, friction, or radiation. Burns can be classified based on the severity and effects of the burn. If the burn only affects the surface of the skin, it is called a superficial burn or first-degree burn. When the underlying layers of the skin are damaged, it is classified as a partial-thickness burn or second-degree burn. Full-thickness burns or third-degree burns are used when all layers of the skin are damaged. Fourth-degree burns also involve damage to deeper tissues such as muscles or bones.