Which burn depth is characterized by redness and blisters?

• A. First degree burn
• B. Second degree burn
• C. Third degree burn
• D. Fourth degree burn

Answer: (B)

Redness with blistering points to a partial-thickness burn, where the epidermis and part of the dermis are damaged. This is the second-degree burn. Blisters form as the damaged skin layers separate and fluid collects between them, which is the classic sign of this depth. First-degree burns affect only the outer layer (epidermis) and cause redness and pain but no blisters. Third-degree burns involve the full thickness of the skin, often looking white, brown, or charred and can be numb due to nerve damage. Fourth-degree burns go deeper still, into muscle or bone, with a more severe overall presentation.