Which type of wound only involves the epidermis?

A wound that only involves the epidermis is classified as a superficial wound. This type of wound typically results from minor injuries, such as abrasions or superficial burns, which do not penetrate beyond the outer layer of skin. Superficial wounds heal quickly and generally do not involve significant tissue damage, inflammation, or scarring, which differentiates them from more extensive wounds that involve deeper layers of skin or underlying tissues.

In contrast, full-thickness wounds extend through the dermis and into deeper tissues, causing more significant damage. Partial-thickness wounds affect both the epidermis and part of the dermis but do not go all the way through the skin layers. Deep wounds involve not only the epidermis and dermis but also underlying structures such as subcutaneous tissue, muscle, or bone. Therefore, these classifications help in understanding the nature of the injury and guide appropriate treatment and healing expectations.