Wound care in nursing is the systematic process of assessing, cleaning, treating, and monitoring wounds to promote healing and prevent complications like infection. It spans everything from basic dressing changes to advanced therapies for chronic wounds that resist healing for months. For nurses, wound care is one of the most hands-on clinical skills, combining physical assessment, knowledge of healing biology, and patient education into daily practice.
Acute vs. Chronic Wounds
The first distinction nurses make is whether a wound is acute or chronic, because the two behave very differently. An acute wound occurs suddenly and moves through the expected stages of healing in a predictable way. Surgical incisions, burns, and traumatic injuries all fall into this category.
A chronic wound is one where little to no healing occurs for at least 30 days, and often for three months or longer. These wounds typically get stuck in the inflammatory stage of healing, the early phase where the body sends immune cells to the area but never progresses to rebuilding tissue. Chronic wounds tend to have jagged edges, a higher risk of infection, and a much longer recovery timeline. Pressure injuries, diabetic foot ulcers, and ulcers caused by poor blood flow in the legs are the most common types nurses encounter.
How Nurses Assess a Wound
A thorough wound assessment is the foundation of every care plan. Nurses document the wound’s location, cause, size (length, width, and depth), and stage. They evaluate the wound bed itself, looking for granulation tissue, which is beefy red and indicates active healing, or unhealthy tissue like fibrinous slough (whitish-yellow material that doesn’t bleed) and eschar (black, callous-like dead tissue). They also check for tunneling or undermining around the wound margins, where tissue has broken down beneath the skin’s surface.
Exudate, the fluid draining from a wound, is assessed by both type and amount. Serous drainage is clear and thin. Serosanguineous is slightly pink. Sanguineous is bloody. Purulent drainage, which is thick and often discolored, signals infection. The volume matters too: minimal, light, moderate, or heavy output guides decisions about which dressings to use. Surrounding skin gets examined for signs of damage, poor circulation, swelling, or loss of sensation. Pain level is documented at every assessment.
Many wound care teams use the TIME framework as a structured approach to chronic wound management. Each letter addresses a barrier to healing:
- T (Tissue): Is the tissue in the wound bed viable, or is dead tissue present that needs removal?
- I (Infection/Inflammation): Are there signs of infection or excessive inflammation stalling the healing process?
- M (Moisture): Is the wound too wet or too dry? Both extremes slow healing.
- E (Edge): Are the wound edges advancing inward, or are they stalled, rolled, or undermined?
Pressure Injury Staging
Pressure injuries are among the most closely tracked wounds in nursing because they’re largely preventable and serve as a quality-of-care indicator. The current staging system uses the term “injury” rather than “ulcer” and numbers stages with Arabic numerals.
A Stage 1 pressure injury is intact skin with non-blanchable redness, meaning the redness doesn’t temporarily disappear when you press on it. Stage 2 involves partial-thickness skin loss, often appearing as a shallow open wound or a ruptured blister with a pink or red wound bed. Stage 3 extends through the full thickness of the skin into the fat layer beneath. Stage 4 goes deeper still, exposing muscle, bone, tendon, or fascia. An unstageable pressure injury is one where the true depth can’t be determined because dead tissue (slough or eschar) obscures it. Deep tissue pressure injuries present as persistent, deep purple or maroon discoloration and may evolve rapidly to reveal extensive damage beneath the surface, or in some cases resolve without tissue loss.
Debridement: Removing Dead Tissue
Dead tissue in a wound bed creates a barrier to healing and raises infection risk. Removing it, a process called debridement, is a core component of wound care. Nurses may perform or assist with several methods depending on the wound type and clinical setting.
Autolytic debridement is the most conservative approach. It relies on the body’s own enzymes and immune cells to break down dead tissue, typically enhanced by keeping the wound moist with appropriate dressings. It’s highly selective, meaning it targets only dead tissue and leaves healthy tissue intact. Enzymatic debridement uses a topical enzyme applied to the wound to dissolve dead collagen and help necrotic tissue detach. Biological debridement uses sterilized fly larvae, which release enzymes that dissolve dead tissue while leaving viable tissue alone. It’s particularly useful for large wounds where painless removal is needed.
Surgical or sharp debridement involves physically cutting away dead tissue with instruments and is the fastest method, typically reserved for wounds with active infection beneath the dead tissue. Mechanical debridement uses physical force, such as wound irrigation or specialized lavage systems, to remove debris. Unlike the other methods, mechanical debridement is nonselective, meaning it can remove healthy tissue along with dead tissue.
Choosing the Right Dressing
Dressing selection revolves around one central principle: maintaining the right moisture balance. A wound that’s too dry won’t heal efficiently, and one that’s too wet can cause the surrounding skin to break down.
For wounds with no exudate, hydrogels add moisture to the wound bed and support the body’s natural debridement process. When exudate is scant to moderate, foam dressings absorb fluid while maintaining a moist environment, and they can often stay in place for several days, reducing the frequency of dressing changes. Calcium alginate dressings handle moderate drainage well, have natural blood-clotting properties, and also support autolytic debridement. Hydrocolloid dressings maintain moisture and promote natural debridement for wounds with light drainage.
For wounds producing large amounts of fluid, more absorbent options like gauze or superabsorbent pads are used and changed more frequently. Semi-occlusive dressings should be avoided on heavily draining wounds because trapping that much moisture against the skin causes maceration, where the surrounding skin turns white, softens, and starts breaking down.
Nutrition and Wound Healing
Healing tissue has high metabolic demands, and poor nutrition is one of the most common reasons wounds stall. Patients with wounds or at risk for pressure injuries generally need 30 to 35 calories per kilogram of body weight per day and 1.25 to 1.5 grams of protein per kilogram per day. For a 150-pound person, that translates to roughly 85 to 100 grams of protein daily, well above the typical dietary intake.
Different nutrients play roles at different healing stages. During the inflammatory phase, zinc, calcium, and vitamins A, E, and K support the immune response. The amino acid arginine helps prepare cells for the rebuilding phase and later aids collagen formation and the growth of new blood vessels. During the proliferation phase, when new tissue is actively forming, B vitamins, iron, zinc, and amino acids become critical. In the final remodeling phase, vitamins C and E along with zinc support collagen synthesis and skin cell maturation. Vitamin C in particular is essential for building and stabilizing collagen’s structure, while vitamin E helps reduce scarring. When patients can’t meet these requirements through regular meals, high-calorie, high-protein supplements enriched with arginine, zinc, and antioxidants are recommended.
Negative Pressure Wound Therapy
For complex wounds that aren’t responding to standard care, negative pressure wound therapy (sometimes called vacuum-assisted therapy) uses controlled suction to draw fluid and bacteria out of the wound. A provider places a specialized foam pad into or over the wound, seals it with an airtight film, and connects it to a pump that applies continuous or intermittent suction. Collected fluid drains into a canister.
By removing excess fluid, the therapy reduces swelling and helps the wound compress down to a smaller size. The sealed, moist environment also encourages new healthy tissue to form. It’s used for chronic wounds, traumatic injuries, burns, diabetic foot ulcers, wounds that have reopened after surgery, and acute wounds that can’t be safely closed right away due to infection risk. It’s not appropriate for wounds with exposed organs or blood vessels, wounds with cancerous tissue, or wounds covered in undebrided dead tissue.
The Nurse’s Role Across Settings
Wound care nursing extends well beyond changing dressings. In hospitals, wound care nurses assess and stage wounds, validate other nurses’ assessments, manage complex dressing regimens, recommend support surfaces for pressure prevention, and track quality measures like pressure injury rates, surgical site infections, and readmission data. In outpatient wound clinics, they manage caseloads of patients with chronic wounds, coordinate with specialists in surgery and infectious disease, and educate patients on self-care strategies for conditions like venous leg ulcers or diabetic foot wounds.
In skilled nursing facilities, wound care nurses provide consultation, prescribe treatments within their scope, analyze infection trends across the facility, and recommend nutritional support or rehabilitation services. Across all settings, wound care encompasses promoting mobility (immobility is a major risk factor for pressure injuries), providing psychosocial support for patients dealing with long-healing or painful wounds, and educating patients and families on what to watch for at home. The scope ranges from bedside registered nurses performing daily assessments and dressing changes to advanced practice nurses who independently manage complex caseloads, select institutional products based on evidence analysis, and design programs to improve healing outcomes facility-wide.