Abrasion:Superficial wound caused by the scraping away of the skin by mechanical means.
Abscess: Buildup of infected fluid/pus formed in tissue as a result of infection.
Alginate: A natural absorptive (hydrophilic)wound dressing manufactured from brown seaweed that gels upon contact with wound exudate.
Bacterial contamination: Bacteria are present in the wound.
Blister: Collection of fluid below or within the epidermis caused by friction, burning, or other damage.
Cellulitis: Inflammation, redness, edema, and tenderness of the tissues-indicative of infection.
Colonization: Bacteria are dividing and have invaded the wound surface.
Debridement: Removal of dead, damaged, or infected tissue from a wound to improve the healing potential of the remaining healthy tissue.
Dehiscence: A surgical complication in which a wound ruptures along surgical suture.
Erythema: Superficial reddening of the skin, usually in patches, as a result of injury or irritation causing dilatation of the blood capillaries.
Eschar: Thick, dry, dark or black falling away of dead skin, typically caused by a burn.
Exudate: Wound fluid or drainage, often increased in inflammation.
Full-thickness wound: Tissue destruction extending through the dermis and may involve subcutaneous tissue and structures such as muscle, bone or supporting structures (e.g., tendons or ligaments).
Gangrene: Localized death and decomposition of body tissue, resulting from either obstructed circulation or bacterial infection.
Granulating: Healthy red tissue which is deposited during the repair process, and presents as pinkish/red colored moist tissue and has newly formed collagen, elastin, and capillary networks.
Hydrocolloid dressing: A category of wound dressings engineered with materials, such as gelatin, pectin, and carboxymethylcellulose that provide a moist healing environment and adhere to the skin around the wound.
Hydrogel: Wound treatment using water-or glycerin-based gels, impregnated gauzes or sheet dressings. Hydrogels maintain a moist healing environment and absorb a minimal amount of wound exudate.
Infected wound: High bacteria counts with tissue damage to surrounding tissue.
Instillation therapy: Delivery to and removal of topical wound solutions to the wound bed.
Necrotic: Dead tissue that usually results from an inadequate local blood supply. Necrotic tissue is further classified as slough or eschar and color ranges from red to brown, black, or purple.
Osteomyelitis: An infection in a bone. Infections can reach a bone by traveling through the bloodstream or spreading from nearby tissue. Osteomyelitis can also begin in the bone itself if an injury exposes the bone to germs.
Partial-thickness: Wounds that extend through the epidermis and may go into, but not through the dermis.
Primary dressing: The wound care product that is placed directly on top of the wound itself.
Secondary dressing: Holds the primary dressing in place.
Skin graft: Removal of partial or full-thickness segment of epidermis and dermis from its blood supply and transplanting it to another site to speed healing and reduce the risk of infection.
Slough: Yellow fibrinous tissue that accumulates in a wound thought to be associated with bacterial activity. Slough consists of fibrin, pus and proteinaceous material.
Tunneling: An opening from the wound base that may extend into the subcutaneous tissue or to muscle. Tunneling may occur from infection, in pressure ulcers from shear or pressure forces or may occur from the overfilling of a wound with excess dressing material which exerts pressure on surrounding tissues.
Undermining: Overhanging skin edges at the margin of the wound.