Clinical meaning
Skin tears are traumatic wounds caused by mechanical forces including friction, shear, or blunt trauma that separate the epidermis from the dermis (partial-thickness) or separate both the epidermis and dermis from underlying structures (full-thickness). Unlike other acute wounds, skin tears occur in skin that is already compromised by intrinsic aging changes, chronic disease, or medication effects, making them one of the most common yet underreported wound types in older adults and chronically ill populations. The International Skin Tear Advisory Panel (ISTAP) defines a skin tear as a wound caused by shear, friction, or blunt force resulting in separation of skin layers. The ISTAP classification system categorizes skin tears into three types: Type 1 (no skin loss -- a linear or flap tear where the flap can be repositioned to cover the wound bed), Type 2 (partial flap loss -- the skin flap cannot be repositioned to fully cover the wound bed), and Type 3 (total flap loss -- the skin flap is completely absent, exposing the entire wound bed). The older Payne-Martin classification uses similar categories: Category I (linear tears...