Deep partial-thickness burn (Epidermis and reticular dermis)

A deep partial-thickness burn affects both the outer skin layer (epidermis) and the deeper reticular dermis, which is part of the skin's second layer. This type of burn damages important structures like hair follicles and sweat glands, which can affect the skin's ability to heal and regulate temperature. The injury causes intense pain, redness, and blistering, and the skin may appear wet or mottled. Because the damage extends deeper than superficial burns, healing takes longer and may result in scarring or changes in skin texture. This condition primarily involves the integumentary system, which protects the body from infection and helps control body temperature.

Deep partial-thickness burns involve destruction of the epidermis and extend into the reticular dermis, sparing some dermal appendages but causing significant tissue injury. These burns typically result from exposure to thermal, chemical, or electrical sources and are characterized by severe pain, blistering, and a mottled, wet appearance due to plasma leakage. The injury disrupts the skin's barrier function, increasing the risk of infection and fluid loss. Healing occurs through re-epithelialization from surviving dermal structures but is slower than superficial burns and often leads to hypertrophic scarring or contractures. Accurate assessment of burn depth is critical for management and prognosis.