What type of burn affects only the epidermis?

A first-degree burn is characterized by damage that is limited to the epidermis, which is the outermost layer of the skin. This type of burn typically presents with redness, minor swelling, and pain, but does not result in blisters or deeper tissue damage. The healing process for a first-degree burn usually occurs within a few days, often without scarring, as the epidermis has the ability to regenerate effectively.

In contrast, second-degree burns extend into the dermis, leading to symptoms such as blistering and significant pain. Third-degree burns involve all layers of the skin and may even damage underlying tissues, resulting in a thick, leathery appearance and a loss of sensation in the affected area. Fourth-degree burns are the most severe, penetrating through the skin into muscles, tendons, and bones, leading to significant and often irreversible damage.

Understanding the severity and implications of each type of burn is critical for appropriate management and treatment in emergency settings.