This document summarizes information about burns, including causes, signs and symptoms, classifications, treatment, and complications. Burns are injuries to skin tissue caused by things like fire, heat, sunlight, chemicals, or electricity. They can range from first-degree burns involving only the outer layer of skin to third-degree burns penetrating deep into tissues. Treatment depends on the severity and extent of the burns, and may include rapid fluid replacement, antibiotics, tetanus shots, and hospitalization for serious burns affecting the airways, large skin areas, or specific body parts. Complications can arise from deep or widespread burns like infections, low blood volume, hypothermia, breathing problems, and scarring.