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    Classification of Burns

    What are the classifications of burns?

    Burns are classified by degree depending on how deeply and severely they penetrate the skin's surface: first, second, third, or fourth. It may be impossible to classify a burn immediately when it occurs. It can progress over time so you may not know the full extent for a day or two.

    • First-degree (superficial) burns. First-degree burns affect only the outer layer of skin, the epidermis. The burn site is red, painful, dry, and has no blisters. Mild sunburn is an example. Long-term tissue damage is rare and often consists of an increase or decrease in the skin color.

    • Second-degree (partial thickness) burns. Second-degree burns involve the epidermis and part of the lower layer of skin, the dermis. The burn site looks red, blistered, and may be swollen and painful.

    • Third-degree (full thickness) burns. Third-degree burns destroy the epidermis and dermis. They may go into the innermost layer of skin, the subcutaneous tissue. The burn site may look white or blackened and charred.

    • Fourth-degree burns. Fourth-degree burns go through both layers of the skin and underlying tissue as well as deeper tissue, possibly involving muscle and bone. There is no feeling in the area since the nerve endings are destroyed.

    Online Medical Reviewer: Eric Perez MD
    Online Medical Reviewer: Marianne Fraser MSN RN
    Online Medical Reviewer: Tara Novick BSN MSN
    Date Last Reviewed: 5/1/2022
    © 2000-2024 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
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    Southern New Mexico
    Surgery Center

    2301 Indian Wells Rd. Suite B
    Alamogordo, NM 88310
    www.snmsc.org

    Phone: 575.437.0890
    Fax: 575.437.0905
    Email: info@snmsc.org

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