A stage 4 bedsore is the most serious kind of pressure injury. The skin and the tissue underneath are gone, and you can see muscle, tendon or even bone. In a nursing home, a stage 4 bedsore is often a sign that a resident was not turned, cleaned or fed the way they should have been, sometimes for weeks.
Families usually find these wounds by accident. A daughter helps change her father’s gown and sees a dressing on his tailbone she didn’t know about. A son visits and notices a smell he can’t explain. Then a nurse mentions, almost in passing, that the wound has “progressed.”
If that’s where you are right now, this guide explains what a stage 4 bedsore is, how it gets that bad, what it means for your loved one’s health, and when it points to neglect under California law.
What Is a Stage 4 Bedsore?
A stage 4 bedsore (also called a stage 4 pressure ulcer or pressure injury) is a wound where steady pressure has destroyed the skin and the layers below it. The Merck Manual describes it as full-thickness skin loss with “extensive destruction, tissue necrosis, and exposure of underlying muscle, tendon, or bone.”
Put simply, it is a deep, open crater. It often has dead tissue in or around it, it may tunnel under the skin around the edges, and it is at high risk of serious infection.
The most common spots are the places where bone sits close to the skin and presses into the mattress or chair: the tailbone and sacrum, the hips, the heels, the ankles, the shoulder blades and the back of the head.
The Stages of Bedsores, From 1 to 4
Doctors and nurses grade bedsores by how deep the damage goes. Here’s what each stage means:
| Stage | What it looks like |
|---|---|
| Stage 1 | Intact skin with a red or discolored patch that doesn’t fade when you press on it. It may feel warm, firm or sore. |
| Stage 2 | The top layers of skin break open, like a shallow scrape or a blister. |
| Stage 3 | A deeper, crater-like wound through the full thickness of the skin into the fat below. Muscle and bone are not exposed. |
| Stage 4 | The deepest wound, with exposed muscle, tendon or bone and often dead tissue. |
| Unstageable | A deep wound covered with dead tissue or a scab (slough or eschar), so its true depth can’t be seen yet. Many turn out to be stage 3 or 4. |
| Deep tissue injury | A purple or maroon area, or a blood-filled blister, where damage has started underneath the skin. It can open up quickly. |
The important thing for families to understand is that a wound doesn’t jump straight to stage 4. Each stage gives the staff a chance to notice it and change the care.
What Does a Stage 4 Bedsore Look Like?
We won’t show photos here, because they are hard to look at and every wound looks a little different. But these are the features nurses and doctors describe:
- ●A deep, open wound where you can see red muscle, white or yellow tendon, or bone at the bottom
- ●Black, brown or yellow dead tissue in or around the wound
- ●Tunneling or undermining, where the wound extends under the skin at the edges
- ●Drainage and a strong odor, especially if it’s infected
- ●Redness, warmth or swelling spreading into the skin around it
If you’re not sure what stage a wound is, ask the nurse directly and ask to see the wound documentation in the chart. You have a right to know.
How Does a Bedsore Get to Stage 4?
Bedsores form when pressure cuts off blood flow to the skin for too long. The standard of care in hospitals and nursing homes is to turn and reposition a bedbound person at least every 2 hours, and to shift the weight of someone in a wheelchair much more often, according to guidance from Cedars-Sinai and other major hospitals.
A wound usually reaches stage 4 when several things go wrong at once:
- ●The resident isn’t turned or repositioned on schedule, especially at night
- ●Early redness (stage 1 or 2) isn’t caught, reported or treated
- ●The resident sits in urine or stool, which breaks down the skin
- ●They aren’t getting enough food, protein or water to heal
- ●No pressure-relieving mattress, cushions or heel protection are used
- ●The doctor and family aren’t told the wound is getting worse
Some residents are at higher risk because of diabetes, poor circulation, paralysis or the final stages of an illness. But being high-risk is exactly why a facility has to be more careful, not less.
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Can a Stage 4 Bedsore Heal?
Yes, some can, but it takes a long time, and healing isn’t guaranteed. Cedars-Sinai notes that once a pressure injury develops, it can take “days, months, or even years” to heal, and that deep wounds reaching muscle and bone may need surgery.
Healing usually requires several things working together: taking pressure off the area completely, cleaning out dead tissue, treating any infection, good nutrition and fluids, and specialized wound care. Some stage 4 wounds need surgery, such as a skin flap, to close.
For a frail, elderly resident, a stage 4 wound may never fully close. That’s one reason prevention matters so much.
Stage 4 Bedsore Life Expectancy
This is the question families ask us most, and it’s the hardest to answer. A stage 4 bedsore doesn’t come with a set timeline, and many people live for years with one or after one heals.
What the research shows is that these wounds often appear in people who are already very sick. In one study of 74 veterans who developed full-thickness pressure ulcers in a VA medical center, 68.9% died within 180 days, but the researchers noted that none of those deaths were caused by the ulcer itself. Most of the patients were seriously ill, and many were already receiving end-of-life care.
The real danger from a stage 4 bedsore is infection. Infection can spread into the bone (osteomyelitis) or into the bloodstream, which can cause confusion, a fast heartbeat and weakness, and can become life-threatening. If your loved one has a deep wound and develops a fever, chills or sudden confusion, ask for a doctor right away.
Your loved one’s own doctor is the best person to talk to about their outlook. Ask them plainly. You deserve a straight answer.
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If your loved one is in immediate danger, call 911 first.Then report the facility, write down dates, times and staff names, and photograph any injuries or bedsores before they heal.
Is a Stage 4 Bedsore a Sign of Neglect?
Not always, but often. Federal rules for nursing homes that take Medicare or Medicaid (42 CFR § 483.25) require the facility to make sure a resident “does not develop pressure ulcers unless the individual’s clinical condition demonstrates that they were unavoidable,” and that residents with pressure ulcers get the treatment they need to heal and prevent infection.
In other words, the law starts from the idea that most bedsores can be prevented. If a facility says a wound was unavoidable, its own records have to back that up.
These are the red flags we look for when a family brings us a stage 4 bedsore case:
- ●The wound was found by the family, not the staff
- ●The chart shows gaps in turning or repositioning, especially overnight
- ●The wound was charted at stage 1 or 2 earlier, and nothing about the care changed
- ●The doctor or family wasn’t told when the wound got worse
- ●The resident was also losing weight or getting dehydrated
- ●The facility was short-staffed or has been cited for pressure ulcers before
You can check a California facility’s inspection history on CDPH’s Cal Health Find website, and federal star ratings on Medicare’s Care Compare. A past citation for pressure ulcers can matter a great deal.
Stage 4 Bedsore Lawsuits in California
When neglect causes a stage 4 bedsore, a family in California may have several claims against the facility, including elder neglect under the Elder Abuse and Dependent Adult Civil Protection Act, negligence, and, if the resident died, wrongful death.
The Elder Abuse Act matters most in serious bedsore cases. If the family proves by clear and convincing evidence that the facility acted with recklessness, oppression, fraud or malice, the court can order the facility to pay the family’s attorney fees, and can award the pain and suffering the resident experienced before death. Repeatedly leaving a resident unturned while a wound gets worse is the kind of conduct these claims are built on.
You’ll find websites listing “average” stage 4 bedsore settlement amounts. We don’t give one, because there isn’t an honest average. What a case is worth depends on things like:
- ●How much pain the resident went through, and for how long
- ●Whether the wound led to infection, surgery, amputation or death
- ●What the facility’s records show about turning, nutrition and wound care
- ●Whether the facility ignored warnings or was understaffed
- ●Whether the higher Elder Abuse Act standard can be proven
Deadlines apply. Many neglect claims must be filed within two years, and some claims have shorter deadlines, so it’s worth talking to a lawyer early. If your loved one lives in a Glendale care home, see our Glendale nursing home abuse lawyer page for local reporting contacts and your legal options.
What to Do If Your Loved One Has a Stage 4 Bedsore
- 1Ask for a doctor’s evaluation now, especially if there’s fever, odor or confusion.
- 2Take photos of the wound (with a nurse present if you can), the bed and the room, and write the date on each one.
- 3Ask for the wound care records and the turning schedule. Residents and their authorized representatives have the right to copies of the chart.
- 4Write down what you were told, by whom, and when.
- 5Report it. In Los Angeles County, you can call the Long-Term Care Ombudsman at 1-800-334-9473 or Adult Protective Services at 1-877-477-3646.
- 6Think about whether your loved one is safe where they are, and whether they need to move.
- 7Talk to a lawyer before signing anything new from the facility.
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Stage 4 Bedsore FAQs
What is a stage 4 bedsore?
It’s the deepest type of pressure injury. The skin and underlying tissue are destroyed, and muscle, tendon or bone is exposed.
How fast can a bedsore get to stage 4?
It varies. Damage can begin quickly when pressure isn’t relieved, which is why the standard is to turn bedbound residents at least every 2 hours. A wound can then worsen over days or weeks if pressure, moisture and nutrition aren’t addressed.
Can a stage 4 bedsore kill you?
The wound itself usually isn’t the direct cause, but infection from a stage 4 bedsore can spread to the bone or bloodstream and become life-threatening.
How long does a stage 4 bedsore take to heal?
Months, sometimes years, and some never fully close. Healing depends on relieving pressure, wound care, nutrition and the person’s overall health.
Is a stage 4 bedsore always neglect?
No. Some are unavoidable because of a person’s medical condition. But federal rules expect facilities to prevent them, and the facility’s records usually show whether proper care was given.
Can I sue a nursing home for a stage 4 bedsore?
Yes, if neglect caused or worsened it. In California, claims can include elder neglect, negligence and wrongful death.
Talk to a Lawyer About a Stage 4 Bedsore
Finding a wound like this on someone you love is awful, and it’s normal to feel angry or guilty for not seeing it sooner. You trusted the staff to do their jobs. If they didn’t, the responsibility is theirs.
Adrianos Facchetti represents families in Glendale, Burbank and across Los Angeles County. The consultation is free, and you pay no attorney’s fee unless we win. Call (626) 793-8607, answered 24/7, or send us a message. Hablamos español. Falamos português.
About the attorney
Adrianos Facchetti, Esq.
Founder, Law Offices of Adrianos Facchetti · Burbank, CA · State Bar #243213
MartindaleAV PreeminentAvvo10.0 SuperbSuper Lawyers2027 SelectionBBBAccreditedPracticingSince 2006
Adrianos Facchetti founded his Burbank firm to represent people hurt by careless drivers, unsafe property and negligent caregivers. He has practiced injury law in Los Angeles County since 2006 and has handled more than 1,000 injury cases.
He earned his law degree at Pepperdine University School of Law and studied at UCLA. He has been selected to Super Lawyers (2027) and Rising Stars (2014 to 2016) and is a member of the Consumer Attorneys Association of Los Angeles.
In his first trial, the jury awarded his client ten times the insurance company’s last offer. He speaks with clients in English, Spanish and Portuguese.
Medical and legal disclaimer: This article is general information, not medical or legal advice. Talk to your loved one’s doctor about their condition and treatment. Every case is different, and reading this page or contacting our office does not create an attorney-client relationship. Adrianos Facchetti is licensed to practice law in California (State Bar #243213). Content reviewed November 2026.
