Pressure Sore Treatment

Introduction

A pressure sore is a wound that develops when sustained pressure on the skin reduces blood flow to the tissue underneath. If you or someone you care for is dealing with a pressure sore, you already know that it is more than a simple skin problem. These wounds can be painful, slow to heal, and prone to coming back — especially in people who spend long periods in bed or in a wheelchair.

This article is written for patients and family caregivers who are now planning the next phase of care: how the wound will be treated, what conservative and surgical options exist, what recovery looks like, and how to lower the risk of new sores forming. Pressure sore care is rarely a single event. It is an ongoing process that involves wound treatment, pressure relief, nutrition, mobility, and family support working together.

The principles described here follow international wound care guidance, including the joint guideline from the National Pressure Injury Advisory Panel (NPIAP), the European Pressure Ulcer Advisory Panel (EPUAP), and the Pan Pacific Pressure Injury Alliance, as well as guidance from NICE in the United Kingdom. Your own treatment plan will be tailored by your wound care team based on the stage of the sore, your underlying health, and your daily living situation.

What Is a Pressure Sore?

A pressure sore — also called a pressure ulcer, pressure injury, or bedsore — is damage to the skin and the tissue below it caused by prolonged or repeated pressure. The pressure squeezes small blood vessels and starves the tissue of oxygen. Within hours, cells can begin to die. If the pressure is not relieved, the damage can extend through the skin, into the fat below, and eventually into muscle and bone.

Three forces usually combine to cause these wounds:

• Pressure — the weight of the body pressing the skin against a bone, a mattress, a wheelchair cushion, or a medical device.
• Shear — what happens when the skin stays in place but the tissue underneath shifts, for example when a person slides down in bed.
• Friction — the rubbing of skin against a surface, which weakens the outer layer.

Moisture from sweat, urine, or stool, along with poor nutrition, reduced sensation, and thin or fragile skin, makes the damage happen faster.

Where Pressure Sores Commonly Form

• The lower back and tailbone area (sacrum and coccyx)
• The hips, especially over the greater trochanter
• The buttocks (the ischial tuberosities, particularly in people who sit for long periods)
• The heels and ankles
• The elbows
• The shoulder blades
• The back of the head, especially in infants and people on long bed rest
• The ears, nose, or other areas under medical devices such as oxygen tubing, casts, or catheters

Stages of Pressure Sores

Wound care teams describe pressure sores in stages based on how deep the damage goes. The international NPIAP/EPUAP classification is widely used:

• Stage 1: The skin is intact but shows a patch of redness that does not fade when pressed. On darker skin, the area may look purple, blue, or different from surrounding skin. The area may feel warm, firm, or painful.
• Stage 2: Partial-thickness skin loss. The wound looks like a shallow open sore, an abrasion, or a blister. The wound bed is pink or red.
• Stage 3: Full-thickness skin loss. Fat is visible in the wound. The wound may have edges that curl inward, and there may be tunnelling under the skin.
• Stage 4: Full-thickness loss with exposed muscle, tendon, ligament, or bone. These wounds carry a high risk of deep infection.
• Unstageable: The base of the wound is covered by dead tissue (slough or eschar), so the true depth cannot be seen until the dead tissue is removed.
• Deep tissue pressure injury: The skin may be intact or blistered, with a persistent dark purple or maroon area that signals damage to the tissue underneath.

Causes and Risk Factors

Pressure sores have one fundamental cause — unrelieved pressure — but many factors increase the risk. Understanding these helps both treatment planning and prevention.

Common Risk Factors

• Limited mobility: Being confined to bed, a wheelchair, or a chair for long periods is the single biggest risk factor. People recovering from major surgery, stroke survivors, and those with spinal cord injury are at especially high risk.
• Reduced sensation: Spinal cord injury, advanced diabetes with neuropathy, multiple sclerosis, and other neurological conditions can prevent a person from feeling the discomfort that would normally prompt them to shift position.
• Poor nutrition and dehydration: Low protein, low calorie intake, vitamin deficiencies, and dehydration all slow healing and weaken skin.
• Incontinence: Constant moisture from urine or stool damages the skin barrier and increases friction.
• Older age: Skin becomes thinner and more fragile, and circulation is often reduced.
• Chronic illness: Diabetes, heart failure, kidney disease, and peripheral vascular disease all reduce the body’s ability to repair tissue.
• Smoking: Tobacco use reduces blood flow to the skin and significantly slows wound healing.
• Cognitive impairment: Conditions such as dementia or sedation may prevent a person from repositioning or reporting discomfort.
• Medical devices: Oxygen masks, feeding tubes, casts, splints, and catheters can press on skin and cause device-related pressure injuries.

Signs to Watch For

If you are caring for someone at high risk, daily skin checks are one of the most useful things you can do. Look for:

• A patch of redness over a bony area that does not fade within 30 minutes of removing pressure
• A change in skin colour, especially purple, blue, or maroon discoloration
• A change in texture — the skin may feel warmer, cooler, harder, or softer than the surrounding area
• Pain or tenderness in a specific spot, even when no wound is visible
• Blistering, peeling, or an open sore, however small
• A foul smell, increased drainage, or change in colour of an existing wound
• Fever, chills, or feeling generally unwell in someone with a known wound — these may signal infection

Early recognition and prompt action at Stage 1 can often prevent progression to a deeper, harder-to-heal wound.

Diagnosis and Wound Assessment

When a pressure sore is being assessed for treatment, the wound care team usually carries out a structured examination rather than just looking at the surface. A thorough assessment helps decide which treatments will work best and uncovers problems that might otherwise be missed.

What the Assessment Includes

• Wound examination: Location, size (length, width, and depth), stage, condition of the wound bed (healthy red tissue, yellow slough, black eschar), edges, and any tunnels or undermining beneath the skin.
• Signs of infection: Redness spreading beyond the wound edges, increased warmth, swelling, foul odour, pus, or systemic signs such as fever.
• Skin survey: A check of all pressure points, not only the obvious wound, because high-risk patients often have more than one sore.
• Pain assessment: Pain is common and is often under-treated in people who cannot communicate easily.
• Mobility and pressure mapping: How the person sits, lies, and transfers, and where pressure is concentrated.
• Nutritional review: Weight changes, dietary intake, blood tests for protein and other markers when needed.
• Underlying conditions: Diabetes control, circulation, continence, and any neurological factors.
• Laboratory tests: Wound swabs or tissue cultures if infection is suspected; blood tests for inflammation, blood sugar, and nutritional status.
• Imaging: X-ray, MRI, or bone scan if there is concern about infection reaching the bone (osteomyelitis), particularly in Stage 4 wounds over the sacrum, hip, or heel.

A clear baseline assessment makes it possible to track whether the wound is improving over time. Many wound clinics photograph wounds at each visit (with consent) to monitor progress.

Treatment and Management

Treatment of a pressure sore depends on the stage of the wound, the underlying cause, and the overall health of the patient. Care is almost always multidisciplinary, often involving a wound care nurse, a physician or geriatrician, a plastic or reconstructive surgeon, a dietitian, a physiotherapist, and an occupational therapist. Major wound care guidelines describe the core principles as: relieve the pressure, clean the wound, manage moisture, treat infection, support healing through nutrition, and reconstruct when conservative care is not enough.

Pressure Relief: The Foundation of All Treatment

• Repositioning schedules: For bedbound patients, turning every two to four hours is a common guideline, though the exact interval is individualised. For wheelchair users, shifting weight every 15 to 30 minutes is often suggested.
• Pressure-redistributing surfaces: Specialty mattresses (foam, gel, air, or alternating-pressure mattresses) and wheelchair cushions designed to spread pressure over a wider area.
• Positioning techniques: Using pillows or wedges to keep heels off the mattress, avoiding head-of-bed elevation greater than 30 degrees when possible (to reduce shear on the sacrum), and using a 30-degree side-lying position rather than full side-lying onto the hip.
• Offloading devices: Heel protectors, boots, or specialised footwear for heel ulcers; sometimes complete bed rest off a specific area until a wound heals.

For wounds over a sitting surface, the patient may need to avoid sitting on the affected area entirely for a period — sometimes weeks — until the wound shows clear signs of healing.

Wound Cleansing and Dressing

The wound is cleaned at each dressing change, typically with saline or a gentle wound cleanser. Antiseptic solutions may be used briefly if infection is suspected, but they are usually not appropriate for long-term use on a healing wound.

Dressing choice depends on the stage of the wound, the amount of drainage, and whether infection is present. Common categories include:

• Transparent films: For Stage 1 or very superficial wounds where the skin remains intact.
• Hydrocolloid dressings: Form a gel as they absorb fluid; useful for Stage 2 wounds with light to moderate drainage.
• Foam dressings: Absorbent, used for wounds with moderate to heavy drainage.
• Hydrogels: Add moisture to dry wounds and help loosen dead tissue.
• Alginate dressings: Made from seaweed; highly absorbent and useful for deep, draining wounds.
• Antimicrobial dressings: Contain silver, iodine, or honey for wounds with high bacterial load.
• Negative pressure wound therapy (NPWT): A sealed dressing connected to a vacuum pump that draws fluid from the wound, improves blood flow, and encourages new tissue growth. Often used for deep Stage 3 and 4 wounds, including before and after reconstructive surgery.

Dressings are changed at intervals advised by the wound care team. Frequent unnecessary changes can disturb new tissue, while leaving a soaked dressing too long can damage surrounding skin.

Debridement: Removing Dead Tissue

• Surgical or sharp debridement: A surgeon or trained clinician cuts away dead tissue with a scalpel or scissors. This is the fastest method and is often used for large or infected wounds.
• Autolytic debridement: Moist dressings allow the body’s own enzymes to break down dead tissue gradually. Gentle but slower.
• Enzymatic debridement: Ointments containing enzymes are applied to dissolve dead tissue.
• Mechanical debridement: Includes wet-to-dry dressings (now used less often because they can damage healthy tissue), wound irrigation, and ultrasonic debridement.
• Biological debridement: Sterile larval (maggot) therapy, used in selected cases where surgical debridement is not feasible.

Stable, dry eschar over a heel pressure injury is sometimes left in place rather than removed, because it can act as a natural cover. This is a clinical judgment made by the wound care team.

Managing Infection

Many pressure sores carry bacteria without being infected in a way that needs antibiotics. True infection is suggested by spreading redness, warmth, swelling, increasing pain, foul-smelling discharge, fever, or worsening of the wound despite good care.

When infection is present, treatment may include:

• Topical antimicrobial dressings for local infection
• Oral or intravenous antibiotics for spreading or systemic infection, chosen based on wound culture results when possible
• Treatment of underlying osteomyelitis (bone infection), which often requires several weeks of intravenous antibiotics and sometimes surgery to remove infected bone

Nutrition

Healing a wound is metabolically expensive. The body needs extra protein, calories, fluids, vitamins (especially A and C), and minerals (especially zinc and iron) to rebuild tissue. A dietitian may recommend:

• A higher-protein diet, often 1.2 to 1.5 grams of protein per kilogram of body weight per day, or more in some cases
• Sufficient calories to prevent weight loss
• Adequate hydration
• Specialised oral nutrition supplements designed for wound healing
• Tube feeding in patients who cannot eat enough by mouth

Treating low vitamin or mineral levels, where present, is part of standard care. Diabetic patients also need careful blood sugar control to support healing.

Pain Management

Pressure sores can be painful, particularly during dressing changes. Pain control is part of treatment and may include scheduled oral pain medicines, short-acting medicines before dressing changes, and topical anaesthetic agents on the wound. Untreated pain is also a barrier to repositioning, which then slows healing.

Surgical Treatment

Many Stage 1 and 2 pressure sores, and a significant proportion of Stage 3 sores, heal with conservative care alone over weeks to months. Surgery is generally considered when:

• The wound is deep (Stage 3 or 4) and has not healed with conservative care
• There is exposed muscle, tendon, or bone
• There is osteomyelitis that cannot be controlled with antibiotics alone
• The wound is very large and would take an impractical length of time to close on its own
• The patient is otherwise fit enough to recover from surgery and to participate in long-term prevention

Surgical options include:

• Surgical debridement: Removal of dead and infected tissue, sometimes including infected bone. This may be the only surgery needed in some cases, with the wound allowed to heal by secondary intention afterwards.
• Skin grafts: A thin layer of skin is taken from another area of the body and placed over the wound. Skin grafts work best on shallower wounds with a good blood supply and are less commonly used over bony pressure points because they lack padding.
• Flap reconstruction: A piece of skin, fat, and sometimes muscle is moved from a nearby area, with its blood supply intact, to cover the wound. Common examples include gluteal flaps for sacral wounds, posterior thigh or hamstring flaps for ischial wounds, and tensor fasciae latae flaps for trochanteric wounds. Flap surgery provides durable coverage with padding over the bony point.
• Free flaps: In selected complex cases, tissue may be moved from a distant site with its blood vessels reconnected microsurgically.
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Successful flap surgery depends not only on the operation itself but on what happens afterwards: strict offloading, good nutrition, and a long-term plan to prevent recurrence.

Preparing for Pressure Sore Surgery

If surgery is being planned, the team will work to put you in the best possible condition first. Preparation usually includes:

• Nutritional optimisation: Building up protein and calorie intake for several weeks before surgery, sometimes with supplements or tube feeding.
• Infection control: Treating any active wound infection or urinary tract infection before the operation.
• Blood sugar control: For people with diabetes, achieving good glucose control in the weeks before surgery.
• Stopping smoking: Tobacco significantly increases the risk of flap failure. Even short periods without smoking before surgery can help.
• Bowel and bladder management: For wounds near the buttocks, plans to keep the area clean and dry after surgery, sometimes including temporary stool diversion in selected cases.
• Imaging and laboratory tests: To map the wound and rule out deeper infection.
• Anaesthetic assessment: Many patients having flap surgery have other medical conditions that need careful pre-operative review.
• Equipment planning: Arranging a specialised pressure-relieving bed for the post-operative period.

What Happens During Surgery

Pressure sore surgery is usually performed under general anaesthesia. The length of the operation depends on the size and depth of the wound and the type of reconstruction. The surgeon typically:

• Removes all dead tissue and any infected bone
• Cleans the wound thoroughly
• Designs the flap or graft to cover the defect
• Closes the wound in layers to create a strong, padded cover over the bony point
• Places drains to remove fluid that may collect under the flap

Hospital stay after flap surgery is often two to four weeks, sometimes longer, because of strict bed rest requirements. Patients are usually nursed on a specialised pressure-relieving bed in a position that keeps all weight off the operated area.

Recovery and Healing

• Stage 1 sores often resolve within days to a week with consistent pressure relief and skin care.
• Stage 2 sores typically heal in one to three weeks with good wound care.
• Stage 3 and 4 sores may take many weeks to several months to heal with conservative care, and not all will close completely.
• After flap surgery, the initial wound usually closes within two to four weeks, but the flap continues to mature and gain strength for several months. Sitting and lying on the operated area is reintroduced gradually under the surgeon’s direction.

Aftercare at Home

Once the patient returns home, the family caregiver becomes central to recovery. Key elements include:

• Continuing the prescribed dressing routine and keeping the wound area clean and dry
• Maintaining a strict repositioning schedule
• Using prescribed pressure-redistributing mattresses and cushions consistently
• Watching for signs of infection or new pressure injuries elsewhere on the body
• Following the nutrition plan
• Attending physiotherapy and occupational therapy appointments
• Keeping follow-up appointments with the wound care team

Many patients also benefit from home wound care nursing visits during the early healing period.

Risks and Complications

Both the pressure sore itself and its treatment carry risks that the care team will discuss with you. These include:

• Local wound infection, which can usually be managed with dressings or antibiotics
• Cellulitis — infection of the surrounding skin
• Osteomyelitis — bone infection, particularly in long-standing Stage 4 wounds
• Sepsis — a serious systemic infection that requires hospital treatment
• Delayed wound healing, especially in patients with diabetes, vascular disease, or poor nutrition
• Flap or graft failure, which may require further surgery
• Bleeding or fluid collection (haematoma or seroma) after surgery
• Recurrence at the same site — reported in a significant proportion of cases after flap surgery if pressure is not adequately controlled afterwards
• New pressure sores at other sites during prolonged bed rest
• Contractures and muscle weakness from immobility
• Emotional impact, including depression, frustration, and social isolation, in patients and caregivers

Many of these risks can be reduced through careful planning, expert wound care, and a strong prevention strategy after healing.

Preventing Pressure Sores from Coming Back

Once a pressure sore has healed, the work is not over. The same conditions that caused the first wound — immobility, reduced sensation, fragile skin, or nutritional limits — usually remain. Recurrence rates after pressure sore healing, particularly after flap surgery, are reported to be high if prevention is not actively maintained. Major guidelines describe prevention as a lifelong commitment built around the following pillars.

Skin Care

• Daily inspection of all bony pressure points, ideally at the same time each day
• Gentle cleansing with warm water and mild soap; thorough drying afterwards
• Moisturisers for dry skin; barrier creams for areas exposed to moisture
• Prompt management of incontinence, with barrier products and frequent changes of pads
• Avoiding vigorous massage over bony prominences, which can damage fragile tissue

Repositioning and Movement

• A clear, written repositioning schedule for bedbound patients
• Regular weight shifts for wheelchair users — for example, leaning forward, tilting, or push-ups every 15 to 30 minutes
• Pillows or wedges between bony areas (such as between the knees when side-lying)
• Keeping heels suspended off the mattress when lying on the back
• Encouraging as much independent movement as the person can manage safely

Support Surfaces

• A pressure-redistributing mattress matched to the patient’s risk level
• A properly fitted wheelchair cushion, replaced when worn
• Heel protectors for high-risk patients
• Avoiding sitting on rubber rings or doughnut cushions, which can increase pressure rather than relieve it

Nutrition and Hydration

• Continuing the higher-protein, well-balanced diet that supports skin and tissue health
• Adequate fluids, unless restricted by a medical condition
• Regular review by a dietitian for patients at ongoing high risk

Underlying Conditions

• Good control of diabetes
• Treatment of circulatory problems where possible
• Management of incontinence
• Avoiding smoking

Caregiver Education

Family caregivers play a critical role and benefit from structured training in safe transfers, repositioning, skin checks, dressing changes, and recognising early warning signs. Many wound care teams provide written instructions and demonstrations before discharge.

Living with the Risk of Pressure Sores

For people with long-term conditions that limit mobility — such as spinal cord injury, advanced multiple sclerosis, severe stroke, or progressive neurological disease — the risk of pressure sores does not go away. Living well with this risk means building daily habits that protect the skin without dominating the day.

Practical strategies many patients and families find helpful include:

• Building skin checks into the morning and evening routine
• Using phone alarms as reminders for repositioning or weight shifts
• Keeping a small wound care kit at home for early intervention if a red area appears
• Maintaining a regular relationship with a wound care nurse or clinic, even when there is no active wound
• Planning ahead for travel, hospital admissions, and changes in routine, all of which can disrupt prevention practices
• Connecting with peer groups or support communities, particularly for people with spinal cord injury, who often have practical, lived experience to share

Pressure sores can also affect mental health. Long healing times, painful dressing changes, restrictions on sitting, and the fear of recurrence are all common stressors. Talking to a counsellor or psychologist can be a useful part of overall care.

Pressure Sores in Children

Pressure sores are less common in children than in adults, but they do occur, particularly in children with complex medical needs. The pattern is often different from adults.

Common causes in children include:

• Spinal cord injury or spina bifida
• Severe cerebral palsy with limited mobility
• Prolonged hospital stays, especially in intensive care
• Medical devices — oxygen masks, nasal cannulas, casts, splints, orthoses, and tracheostomy tubes are frequent causes of pressure injuries in children
• Cardiac, neurological, or developmental conditions that affect skin perfusion or sensation

The back of the head is a more common site in infants than in adults, because of the relatively large head size and time spent lying down. Device-related pressure injuries on the ears, nose, and face are also common.

Treatment principles are similar to those in adults — relieve the pressure, treat the wound, optimise nutrition — but with adjustments for size, growth, skin fragility, and the family’s ability to carry out the care plan at home. Paediatric wound care teams and paediatric plastic surgeons are typically involved for deeper or complex wounds. Prevention focuses heavily on careful positioning, regular skin checks under medical devices, and education for parents and school staff.

When to Seek Urgent Care

Most pressure sore care happens in clinics and at home, but certain signs need urgent medical attention. Contact your wound care team or seek emergency care if you notice:

• Fever, chills, or feeling very unwell in someone with a pressure sore
• Spreading redness, warmth, or swelling around the wound
• A sudden increase in pain
• Foul-smelling discharge or large amounts of pus
• The wound becoming much larger or deeper
• Black tissue developing rapidly around the wound edges
• Confusion, drowsiness, or low blood pressure in the patient, which may signal sepsis
• Bleeding from the wound that does not stop with pressure

Early treatment of infection prevents many serious complications, including bone infection and sepsis.

Frequently Asked Questions

Can a pressure sore heal on its own?

Stage 1 and shallow Stage 2 sores often heal with consistent pressure relief, good skin care, and basic wound dressings. Deeper sores rarely heal without structured wound care, and Stage 3 and 4 wounds usually need specialist input.

How long does it take to heal a pressure sore?

Healing time depends on the stage of the wound and the overall health of the person. Superficial wounds may heal in days to a few weeks. Deep wounds can take many weeks to months, and some never close completely without surgery.

Do all pressure sores need surgery?

No. Most early-stage sores heal with conservative care. Surgery is generally reserved for deep, non-healing wounds, wounds with exposed muscle or bone, or wounds that are too large to close on their own in a reasonable time.

Can pressure sores come back after they heal?

Yes. Recurrence is common, especially when the underlying risk factors — immobility, reduced sensation, poor nutrition — remain. Ongoing prevention is the most important defence against recurrence.

Is home care enough for severe pressure sores?

Severe (Stage 3 or 4) wounds usually need at least some hospital-based or specialist clinic care. Once the wound is stabilised, much of the ongoing care can often be carried out at home with support from a wound care nurse and trained family caregivers.

How often should a bedridden person be repositioned?

Many guidelines suggest at least every two to four hours for bedbound patients, with the exact interval adjusted to the person’s risk level, skin response, and the type of mattress in use. Wheelchair users are typically advised to shift weight every 15 to 30 minutes.

Are special mattresses really necessary?

For people at high risk of pressure sores or who already have one, pressure-redistributing surfaces meaningfully reduce risk and support healing. The right type depends on the level of risk, mobility, and the location of the wound. A wound care team can advise on the appropriate surface.

Can good nutrition really make a difference?

Yes. Wounds cannot heal without enough protein, calories, fluids, vitamins, and minerals. Addressing under-nutrition is a recognised part of pressure sore treatment in international guidelines.

What is the role of the family caregiver?

The family caregiver is often the person who actually delivers the care that heals the wound and prevents new ones — repositioning, skin checks, dressing changes, helping with nutrition, and supporting mobility. Training and support for caregivers is a recognised part of good pressure sore care.

Conclusion

Pressure sores are serious wounds, but they are treatable, and many are preventable. Care brings together wound treatment, pressure relief, nutrition, mobility, and family support, and it unfolds over weeks to months rather than in a single event. Conservative care heals many sores; deeper or non-healing wounds may need debridement and reconstructive surgery to close durably.

The most important long-term task is prevention. For people with ongoing risk factors, daily habits — skin checks, repositioning, the right support surfaces, good nutrition, and management of underlying conditions — are what protect against recurrence. With a clear plan, a supportive care team, and informed family caregivers, even complex pressure sores can heal, and the risk of new ones can be meaningfully reduced.