What type of burn is characterized by intact blisters and redness?

A second-degree burn is characterized by the presence of intact blisters and redness. This type of burn impacts both the outer layer of skin, the epidermis, and extends into the dermis, where it can cause fluid-filled blisters to form. The redness is a result of inflammation due to the damage and the response of the body to heal the affected skin.

In contrast, a first-degree burn typically affects only the outermost layer of skin and is characterized by redness and minor irritation without blisters. Third-degree burns involve full thickness destruction of the skin, often resulting in a white or charred appearance without blisters. Fourth-degree burns extend beyond the skin into underlying structures such as fat, muscle, or bone, showing significant tissue damage, and also do not present with blisters. Thus, the unique presence of intact blisters alongside redness distinctly identifies a second-degree burn.