Which degree of burn is characterized by blisters on the skin?

The degree of burn characterized by blisters on the skin is indeed the second degree burn. This type of burn affects both the outer layer of skin, known as the epidermis, and part of the underlying layer, called the dermis. The presence of blisters is a key feature of second degree burns, which serve to protect the underlying tissues and are a result of fluid buildup between the layers of skin due to the burn injury.

In contrast, first degree burns, which affect only the epidermis, typically result in redness and minor swelling but do not form blisters. Third degree burns extend through both the epidermis and dermis, damaging deeper tissues and usually leading to charred or white skin without the formation of blisters. Fourth degree burns involve even deeper tissues, including muscle and bone, and result in severe damage without blister formation. Thus, the clear manifestation of blisters indicates a second degree burn.