Pressure Ulcers (Bedsores)

What is Pressure ulcers?

Pressure ulcers, also known as bedsores or decubitus ulcers, are injuries to the skin and underlying tissue that develop when sustained pressure reduces blood flow to an area of the body. Without adequate circulation, the tissue can become damaged and begin to break down. They most often appear on bony prominences such as the heels, sacrum (lower back), hips, and elbows, but they can occur anywhere that skin is pressed against a hard surface for a prolonged period.

The condition is graded from Stage I (non‑blanchable redness) to Stage IV (full‑thickness tissue loss exposing muscle or bone). Early recognition and prompt treatment are essential because advanced ulcers can lead to serious infection, sepsis, and even death.

Sources: Mayo Clinic; National Pressure Injury Advisory Panel (NPIAP); WHO.

Common Causes

Pressure ulcers are multifactorial. The following conditions and situations increase risk:

• Immobility: Prolonged bed rest, wheelchair confinement, or paralysis.
• Reduced sensation: Spinal cord injury, diabetic neuropathy, or stroke.
• Improper positioning: Sitting or lying in one position for many hours.
• Malnutrition or dehydration: Inadequate protein, calories, vitamins, or fluids.
• Friction & shear: Sliding down in bed or a chair, causing skin layers to rub against each other.
• Medical devices: Oxygen masks, catheters, or braces that press on skin.
• Vascular disease: Atherosclerosis or peripheral arterial disease limiting blood flow.
• Advanced age: Thinner skin and reduced regenerative capacity.
• Chronic illnesses: Cancer, HIV/AIDS, or severe COPD that affect healing.
• Obesity: Excess weight increases pressure on bony areas and can conceal early ulcers.

Associated Symptoms

Pressure ulcers rarely appear in isolation. Common accompanying signs and symptoms include:

• Localized pain, tenderness, or burning sensation.
• Skin discoloration – red, purple, or mottled appearance.
• Swelling (edema) around the affected area.
• Drainage that may be clear, serous, or purulent (pus‑like) if infection develops.
• Foul odor from the wound.
• Fever, chills, or a general feeling of being unwell (possible infection).
• Reduced mobility due to pain or the need to protect the ulcer.
• In severe cases, visible tissue loss, exposed muscle, tendon, or bone.

When to See a Doctor

Prompt medical evaluation is crucial. Seek professional care if you notice any of the following:

• Redness or discoloration that does not fade when pressure is relieved (non‑blanchable).
• Any open sore, blister, or break in the skin that persists longer than 24–48 hours.
• Pain that intensifies despite repositioning or pressure relief.
• Drainage that is yellow, green, or has a foul smell.
• Fever, rapid heartbeat, or unexplained fatigue.
• Sudden increase in ulcer size or depth.
• History of diabetes, vascular disease, or immune compromise combined with any skin change.

Early intervention can halt progression and reduce the risk of complications.

Diagnosis

Healthcare providers use a systematic approach to assess pressure ulcers:

1. Clinical Examination

• Visual inspection of the wound’s size, depth, color, and tissue type.
• Palpation to assess tenderness, induration, and underlying structures.
• Staging according to NPIAP criteria (Stage I–IV, Unstageable, Deep Tissue Injury).

2. Assessment Tools

• Braden Scale: Predicts risk by scoring sensory perception, moisture, activity, mobility, nutrition, and friction/shear.
• Push Tool: Evaluates pressure ulcer risk in acute care.

3. Laboratory & Imaging Studies

• Wound culture if infection is suspected.
• Blood tests (CBC, CRP, ESR) to detect systemic infection.
• Imaging (X‑ray, MRI, or CT) when bone involvement (osteomyelitis) is a concern.

4. Specialist Referral

Complex or deep ulcers often require input from a wound‑care nurse, dermatologist, plastic surgeon, or infectious disease specialist.

Treatment Options

Treatment is multi‑modal and aims to relieve pressure, promote healing, prevent infection, and manage pain.

Medical Interventions

• Pressure‑relieving devices: Specialized mattresses (alternating‑pressure, low‑air‑loss), cushions, and heel protectors.
• Debridement: Removal of dead tissue through surgical, mechanical, enzymatic, or autolytic methods.
• Topical dressings: Hydrocolloids, foam, alginate, honey‑based, or silver‑impregnated dressings selected based on wound exudate and infection risk.
• Systemic antibiotics: Prescribed only when there is clinical or microbiological evidence of infection.
• Negative‑pressure wound therapy (NPWT): Applies controlled suction to promote granulation and reduce edema.
• Advanced therapies: Growth factor gels, skin substitutes, or hyperbaric oxygen for refractory wounds.

Home Care Measures

• Reposition every 2 hours while lying down and every 15 minutes while seated.
• Keep the skin clean and dry; use mild, fragrance‑free cleansers.
• Apply prescribed dressings according to the caregiver’s instructions.
• Maintain adequate nutrition – at least 1.2–1.5 g protein/kg body weight daily, plus vitamin C, zinc, and adequate calories.
• Stay well‑hydrated (≈30 mL/kg/day).
• Inspect skin daily, especially over bony prominences.

Pain Management

Use acetaminophen or NSAIDs as tolerated, and consider topical analgesics (lidocaine‑containing gels) for localized discomfort. In severe cases, a physician may prescribe opioid analgesics.

Prevention Tips

The best strategy is to avoid pressure injury before it starts.

• Risk assessment: Perform Braden or another validated tool on admission and reassess daily.
• Movement schedule: Turn or reposition patients at least every 2 hours; encourage active range‑of‑motion exercises for those able.
• Support surfaces: Use pressure‑relieving mattresses, cushions, and footboards for at‑risk individuals.
• Skin care: Keep skin clean, moisturized, and free of excess moisture; use barrier creams under incontinence zones.
• Nutrition & hydration: Provide high‑protein, high‑calorie meals; supplement with vitamins A, C, zinc, and iron as needed.
• Educate patients & caregivers: Teach the “look, feel, re‑position” routine.
• Avoid shear: Use draw‑sheet techniques and friction‑reducing devices when moving a patient.
• Manage comorbidities: Control diabetes, peripheral vascular disease, and anemia to promote tissue health.

Emergency Warning Signs