Bed sores on the buttocks, known clinically as pressure injuries, can often be managed at home when caught early, but the stage of the wound determines what home care is appropriate and when professional medical help is necessary. Stage 1 and most stage 2 pressure injuries respond well to consistent offloading, basic wound care, and nutritional support. Deeper wounds involving exposed fat, muscle, or bone generally require medical or surgical intervention. The buttocks and sacrum are the most common sites for these injuries in people who spend long periods sitting or lying down, and the combination of pressure, moisture from incontinence, and friction makes this area especially vulnerable.
Why the Buttocks Are So Vulnerable
Pressure injuries develop when sustained force compresses skin and deeper tissue against a bony prominence. On the buttocks, the sacrum and the sitting bones (ischial tuberosities) are the main culprits. When someone lies on their back or sits in a wheelchair for extended periods, blood flow to the tissue trapped between bone and surface gets cut off. Research in animal models has shown that the combination of tissue deformation and this loss of blood flow is the primary trigger for irreversible muscle damage, with deformation alone causing harm within about two hours if the compression exceeds a certain threshold.
What makes the buttocks worse than many other body areas is the added insult of moisture. Incontinence-associated dermatitis, the skin breakdown caused by prolonged contact with urine or stool, dramatically increases the risk of developing a sacral pressure injury. A large multisite study found that the presence of incontinence-related skin damage was associated with roughly four and a half times the odds of developing a sacral pressure injury, and immobility multiplied that risk further.
Recognizing the Stages
Pressure injuries are classified into stages based on how deep the damage goes. Understanding the stage is the first step in deciding whether home care is safe or whether you need a clinician involved.
- Stage 1: The skin is intact but shows a persistent red or discolored area that does not turn white (blanch) when you press on it. On lighter skin, this typically looks red or pink. On darker skin tones, persistent darkening or hyperpigmentation rather than blanching is the key sign to watch for.
- Stage 2: The outer layer of skin has broken open, forming a shallow wound, blister, or abrasion. The wound bed is pink or red. There is no dead tissue (slough) visible. This stage is painful but still generally manageable at home with proper supplies and guidance.
- Stage 3: Full-thickness skin loss. Fat may be visible in the wound, but bone, tendon, and muscle are not exposed. Tunneling or undermining of surrounding tissue can occur. This stage typically needs clinical oversight.
- Stage 4: Full-thickness tissue loss with exposed bone, tendon, or muscle. Dead tissue or thick dark scabs (eschar) may be present. Tunneling is common. This stage carries a serious risk of bone infection (osteomyelitis) and requires professional wound care, and often surgery.
- Unstageable: The wound base is covered by dead tissue, making it impossible to determine the true depth. A clinician needs to assess and possibly debride the wound before the stage can be identified.
- Deep tissue injury: The skin surface may look intact or show only a dark purple or maroon discoloration, but damage to underlying muscle and deeper tissue has already occurred. On lighter skin, this presents as a purple or maroon area with a defined border. On darker skin, detecting this is harder, making careful assessment with good lighting essential.
Stage 1 and stage 2 injuries are the ones you can reasonably manage at home with consistent effort. Stage 3 and beyond need a wound care specialist, though the home caregiver still plays a critical daily role in offloading, cleaning, and nutrition even when a clinician is directing the treatment plan.
Relieving Pressure Is the Single Most Important Thing
No wound care product or dressing will help if the person keeps sitting or lying on the sore. Pressure offloading is the foundation of both treatment and prevention. For someone in bed, the standard recommendation is repositioning at least every two hours and using a 30-degree side-lying tilt to keep weight off the sacrum. Research on maintaining that tilt angle found that regular pillows tend to flatten out quickly: within two hours, the tilt dropped from about 27 degrees at baseline to roughly 17 degrees when using a standard pillow, but purpose-designed positioning devices held the angle much better, staying near 27 degrees at the two-hour mark.
For someone in a wheelchair, weight shifts every 15 to 30 minutes are the goal. If the person can lean forward or shift side to side independently, coach them to do so regularly. If they cannot, a caregiver needs to assist. Pressure-relieving cushions designed for wheelchairs can help distribute weight more evenly.
The type of mattress or surface matters as well. The 2023 Wound Healing Society guidelines note that the quality of evidence for any single type of support surface is limited, but there is some evidence that reactive air surfaces may be more likely to promote healing compared with standard foam mattresses.
For prevention specifically, a Cochrane review found that foam surfaces may increase the risk of new pressure injuries compared with both alternating-pressure air mattresses and reactive air surfaces.
How to Clean a Pressure Injury at Home
Keeping the wound clean is straightforward but important. For stage 1 and stage 2 injuries, gentle cleansing with normal saline or clean water during each dressing change is usually sufficient. You do not need harsh antiseptics; they can damage healthy tissue and slow healing. A Cochrane review on wound cleansing for pressure ulcers found no significant difference in healing when comparing plain water to saline, though there was some evidence that pulsatile lavage (a gentle pressurized rinse) reduced wound volume compared with sham treatment.
In practice, you can use a clean squeeze bottle to gently irrigate the wound with saline or tap water that has been boiled and cooled. The goal is to remove loose debris and any dried drainage without scrubbing the wound bed. Pat the surrounding skin dry afterward. If the wound looks like it has dead tissue building up (yellowish slough or dark eschar), do not try to remove it yourself. That kind of cleaning, called debridement, has different approaches with different trade-offs.
Debridement at Home
Dead tissue in a wound slows healing and increases infection risk, so removing it matters. But the method matters just as much. At home, the safest approach is autolytic debridement, which uses moisture-retentive dressings like hydrogels to soften and help the body’s own enzymes dissolve dead tissue naturally. It is slow and gentle, which makes it appropriate for people who cannot tolerate more aggressive techniques or who are managing wounds without direct clinical supervision.
Enzymatic debridement uses prescription ointments containing collagenase, an enzyme that breaks down dead collagen in the wound. A systematic review found that collagenase-based enzymatic debridement consistently achieved faster wound-size reduction and greater formation of healthy granulation tissue compared with autolytic methods.
An economic analysis estimated that wounds treated with collagenase closed in roughly 48 days on average, versus about 147 days for hydrogel-based autolytic debridement, with substantially lower total costs for the collagenase group.
Sharp debridement, which involves cutting away dead tissue with instruments, should only be done by a trained clinician. If a wound has thick, adherent eschar or is showing signs of infection, call your healthcare provider rather than attempting to manage it at home.
Choosing and Applying Dressings
The ideal dressing for a pressure injury keeps the wound bed moist, absorbs excess fluid, protects against contamination, and comes off without tearing new tissue. For stage 1 injuries, a transparent film or thin foam dressing provides a protective barrier. For stage 2 wounds with some drainage, foam dressings or hydrocolloid dressings are common choices.
A Cochrane review comparing foam dressings to hydrocolloid dressings for treating pressure ulcers found no clear difference in healing rates over short follow-up periods, with very low certainty in the evidence.
What does differ is comfort. Dressings that retain moisture and peel away easily cause significantly less pain during changes. Hydrogels, alginates, soft silicone dressings, and foam dressings are all gentler on the wound bed than traditional gauze. Contact-layer dressings that sit directly against the wound have been shown to lower pain during changes by minimizing tissue disruption.
For the sacral area specifically, prophylactic foam dressings shaped to fit the sacrum have shown real benefits. A meta-analysis of nine randomized controlled trials involving nearly 4,000 patients found that sacral foam dressings cut the pressure injury rate by about 63% compared with standard care alone.
When applying any dressing, make sure the surrounding skin is clean and dry. Use a skin protectant or barrier wipe on the intact skin around the wound to prevent irritation from adhesives. Secure the dressing with medical tape or, if the area is difficult to tape, use tubular mesh netting. Change the dressing according to the product instructions or whenever it becomes saturated, soiled, or loose.
Managing Moisture and Incontinence
Moisture from urine, stool, or sweat is one of the biggest threats to skin integrity on the buttocks. Even a perfectly offloaded wound will struggle to heal if the skin is constantly wet. If the person you are caring for has incontinence, managing that moisture aggressively is essential.
Use absorbent incontinence products and change them promptly after soiling. Clean the skin gently with a pH-balanced cleanser rather than soap and water, which can strip the skin’s natural oils. After cleaning, apply a barrier cream or skin protectant. Products containing dimethicone or zinc oxide create a physical barrier against moisture. Some barrier creams incorporate antimicrobial ingredients like manuka honey for added skin protection in moisture-damaged areas.
Given that incontinence-associated dermatitis is so strongly linked to sacral pressure injuries, it is worth discussing continence management options with a healthcare provider. A continence assessment may identify treatable causes or lead to a better product strategy. Even small improvements in moisture control can make a meaningful difference in wound healing and prevention of new sores.
Nutrition Makes a Bigger Difference Than Most People Realize
Your body needs raw materials to rebuild tissue, and wounds heal poorly when those materials are in short supply. Protein is the most important nutritional factor in pressure injury healing. A study of nursing home residents with pressure ulcers found that those receiving a high-protein diet (about 24% of total calories from protein) had a significant decrease in total ulcer surface area, while those on a standard protein diet (14% of calories) did not show significant improvement. The effect was especially pronounced in stage 4 ulcers, where the high-protein group showed roughly twice the reduction in wound area.
Calories matter too. In the same study, both protein and caloric intake per kilogram of body weight correlated with wound shrinkage. Malnourished individuals with pressure injuries need more food, not less, even if they are not very active. A general target often cited in wound care is 30 to 35 calories per kilogram of body weight per day and 1.25 to 1.5 grams of protein per kilogram per day, though individual needs vary.
Micronutrients also play a role, though the evidence is mixed. One small randomized trial found that supplementation with arginine, vitamin C, and zinc significantly improved pressure ulcer healing over three weeks compared with a control group.
However, a more recent study looking at routine supplementation with vitamins A and C, zinc, and arginine in patients with stage 4 pressure ulcers concluded that routine treatment with these supplements was not justified, suggesting the benefit may depend on whether the person was deficient to begin with.
The practical takeaway: focus on getting enough protein and total calories first. If the person is eating poorly, a nutritional supplement drink with high protein content is an easy way to boost intake. Discuss specific vitamin or mineral supplementation with a doctor, especially if the person has kidney disease or other conditions that affect how nutrients are processed.
Recognizing Infection Early
Any open wound can become infected, and buttock wounds are especially prone because of their proximity to the perineal area. Signs that a pressure injury may be infected include increasing redness spreading outward from the wound edges, warmth, swelling, foul-smelling drainage, green or yellow pus, increasing pain, and fever. If you notice any of these, contact a healthcare provider promptly.
The deeper the wound, the higher the stakes. Stage 4 pressure injuries that expose bone carry a risk of osteomyelitis, a bone infection that requires prolonged antibiotic treatment and sometimes surgery. A retrospective analysis of patients with late-stage pressure sores found that those who developed osteomyelitis had significantly higher inflammatory blood markers on admission, including elevated C-reactive protein and increased white blood cell counts.
You cannot diagnose osteomyelitis at home. But if a deep wound is not improving despite good care, or if the person develops new fevers or a general decline, push for medical evaluation sooner rather than later.
Managing Pain During Wound Care
Pressure injuries can be genuinely painful, especially during dressing changes, repositioning, and cleaning. The choice of dressing has a direct effect on how much pain the person experiences. Dry or adherent dressings that stick to the wound bed increase pain by stimulating nerve endings during removal. Moisture-retentive dressings that release easily, including soft silicone, hydrogels, and foam dressings, cause significantly less discomfort.
If a dressing has dried to the wound, moisten it with saline before trying to remove it. This small step can prevent a lot of unnecessary pain and tissue damage. Some foam dressings are designed to release ibuprofen in response to wound fluid, offering localized pain relief without the side effects of oral medications.
For ongoing wound pain outside of dressing changes, over-the-counter pain relief like acetaminophen or ibuprofen may help, but check with a healthcare provider about interactions with other medications. Topical pain relief options are also emerging. The key point is that wound pain is not something people should just endure. Uncontrolled pain makes repositioning harder, disrupts sleep, and can lead to depression, all of which slow healing.
Repositioning Safely as a Caregiver
Turning and repositioning someone in bed every two hours is physically demanding work, and informal caregivers doing this at home are at real risk of back injuries. Using a slide sheet, a low-friction fabric placed under the person, can make a significant difference. Research comparing repositioning tasks with and without slide sheets found that using a slide sheet reduced back muscle activity and lowered the amount of physical force needed during boosting and turning-away tasks.
Technique matters too. When turning someone away from you, bend your knees, keep your back straight, and use your body weight rather than arm strength. When boosting someone up in bed, a slide sheet lets you push rather than lift. If the person is heavy or completely immobile, consider requesting a home health aide visit to help with repositioning, at least until you develop a sustainable routine.
Consistency with repositioning is honestly the hardest part of home care. In hospital settings, wearable patient sensors that track body position and alert staff when a turn is overdue have been shown to increase repositioning compliance from about 55% to 89% and reduce the average interval between turns from 3.8 hours to 2.3 hours.
A larger pragmatic trial found that patients monitored with a wearable sensor had significantly fewer hospital-acquired pressure injuries than those receiving standard care: about 0.7% versus 2.3%.
Consumer-grade versions of these sensors are becoming available. If you are caring for someone at high risk and struggling to maintain a regular turning schedule, a sensor that sends reminders to your phone may be worth exploring.
When Home Care Is Not Enough
Certain situations call for professional intervention, and recognizing them quickly makes a real difference in outcomes. Seek medical help if any of the following apply:
- The wound is stage 3 or deeper: Full-thickness wounds need clinical assessment for debridement planning, possible negative-pressure wound therapy, and sometimes surgical closure.
- Signs of infection are present: Spreading redness, fever, foul drainage, or worsening pain all warrant prompt evaluation.
- The wound is not improving: If a stage 2 injury has not shown progress after two to four weeks of consistent home care, something is off. It could be unrecognized deeper damage, an undetected infection, or a nutritional deficiency that needs investigation.
- The wound is unstageable: If you cannot see the wound bed because it is covered with dead tissue, a clinician needs to debride and assess the true depth before you can plan appropriate care.
- The person has other serious conditions: Diabetes, vascular disease, or immunosuppression all slow healing and increase complications. These individuals benefit from closer medical follow-up even for seemingly minor wounds.
Donut Cushions and Other Common Mistakes
Ring-shaped or “donut” cushions are one of the most persistent bad ideas in pressure injury care. They seem logical: remove pressure from the center by elevating the surrounding tissue. In reality, they concentrate pressure on the tissue around the ring’s edge, which can reduce blood flow to the very area you are trying to heal. A small study testing donut-shaped cushions during surgery found no statistically significant difference in pressure injury rates compared with controls, and all the injuries that developed occurred in the control group at such small numbers that nothing meaningful could be concluded.
Other common mistakes include using heat lamps or hair dryers to “dry out” the wound (this kills tissue), applying hydrogen peroxide or rubbing alcohol to the wound (both are cytotoxic to healing cells), and massaging reddened skin (this can worsen damage to already compromised tissue). Clean with saline or water, keep the wound moist with an appropriate dressing, and let the body do its work.
Another frequently overlooked error is padding the wound with thick gauze and then taping it in place. The tape can tear fragile surrounding skin, and dry gauze sticks to the wound bed, ripping away new tissue with each dressing change. If gauze is all you have, dampen it with saline before applying it, and use gentle paper tape or mesh netting to hold it.