Whether burns leave scars depends on the severity of the burn and whether emergency measures were taken after the burn. Clinically, burns can be divided into three degrees. A first-degree burn, which is mild, generally shows symptoms such as stinging pain, mild swelling, and erythema. With timely soaking in cold water, rinsing, and application of burn medicine, scars are not left. For deeper second-degree and third-degree burns that involve the dermis, there is a possibility of scarring. At this point, the skin at the affected area may show necrosis, and local healing may be delayed. Therefore, actively treating the burn immediately after it occurs, preventing infection, and quicker wound healing can reduce the likelihood of scarring.