In this article
- Who can legally do wound care at home in California?
- What can a registered nurse do for a wound that others can't?
- What can a licensed vocational nurse do — and what do they need first?
- What is a home health aide or CNA allowed to do with a wound?
- Can a family caregiver change a dressing themselves?
- Does Medicare require a licensed nurse for wound care to be covered?
Who can legally do wound care at home in California?
It depends on what the wound actually needs, because California licenses wound care in layers rather than handing it to one job title. A registered nurse can assess a wound, decide on the treatment plan, and carry it out independently. A licensed vocational nurse can perform the hands-on care — cleaning, dressing, monitoring — but only under the direction of a physician or RN, not on their own independent judgment (Cal. Bus. & Prof. Code § 2859). A certified home health aide is boxed in much further: non-sterile dressing changes only, on a wound a nurse has already assessed as stable, and only once the aide has demonstrated competency in that specific task for that specific patient (Cal. Code Regs., tit. 22, § 74710). A family caregiver sits outside this entire licensing structure — not because untrained wound care is automatically safe, but because the state doesn't regulate what happens inside a family's own home the way it regulates paid, licensed care.
The practical result: two dressing changes that look identical from across the room can be on opposite sides of a legal line, depending on whether the wound is sterile or non-sterile, stable or changing, and who's actually doing the changing. This site's broader RN/LVN/CNA scope-of-practice guide covers the full landscape of what each credential can do; this article stays on wound care specifically, because it's one of the situations families run into fastest after a hospital discharge and one of the easiest to get quietly wrong.
What can a registered nurse do for a wound that others can't?
Independent clinical judgment — that's the real dividing line, not just the tasks. California law defines the practice of nursing to include observing signs and symptoms, determining whether they're abnormal, and then acting on that determination: reporting, referring, changing the treatment plan, or starting emergency procedures, all without waiting for someone else's order in the moment (Cal. Bus. & Prof. Code § 2725(b)(4)). For a wound, that's the difference between someone who can look at new redness spreading past the dressing margin and decide, on the spot, that the plan needs to change — versus someone who has to wait for a nurse to make that call.
In practice, that means an RN can assess a wound's stage and depth, choose the dressing type and change frequency, recognize early signs of infection or delayed healing, and adjust the plan as the wound changes, all as part of one continuous clinical judgment rather than a series of separately authorized steps.
What can a licensed vocational nurse do — and what do they need first?
An LVN can absolutely perform wound care — the license exists specifically to deliver skilled technical nursing care — but California law defines vocational nursing as work "practiced under the direction of a licensed physician and surgeon or registered nurse" (Cal. Bus. & Prof. Code § 2859(a)). The technical skill is licensed independently; the clinical judgment behind it isn't. An LVN carrying out a wound-care plan an RN or physician has already set is squarely inside their scope. An LVN deciding, on their own authority, that a wound needs a different treatment approach than what was ordered is not.
This is exactly why a private-duty nursing team is typically built as RN-supervised LVN and RN staff rather than LVNs working solo: the direction requirement isn't paperwork, it's the actual legal structure of the license. Our guide to agency versus independent private nursing covers how that supervision is supposed to work in practice, and what to ask if you're not sure it's really happening.
What is a home health aide or CNA allowed to do with a wound?
Non-sterile dressing changes on a wound someone else has already deemed stable — and even that comes with two conditions attached. First, it has to be a task "taught by a health professional for a specific patient," not a generic skill the aide brings from training. Second, "the aide shall demonstrate competency in any service the aide is to perform prior to providing patient care" — for that patient, that wound, every time (Cal. Code Regs., tit. 22, § 74710).
What falls outside that: sterile dressing changes, any wound that's actively being assessed or changing, and anything beyond simple non-sterile care on intact surrounding skin. When a wound needs more than that, it needs to go back to a nurse — not because the aide isn't capable of following instructions, but because the regulation was written to keep clinical judgment with a license that carries it.
One naming distinction matters here, because California actually regulates two different roles that get called similar things. A "home health aide" under Title 22 is the medical-side role described above, typically employed by a licensed home health agency, with the narrow non-sterile-dressing allowance just described. A "registered home care aide" is a separate category entirely, governed by California's Home Care Services Consumer Protection Act, and that statute's own list of permitted services is nonmedical — bathing, dressing the person (not a wound), feeding, and similar personal care — with wound care not included at all. Our broader scope-of-practice guide covers that second category and the rest of the caregiver landscape in full.
Can a family caregiver change a dressing themselves?
Generally, yes — and this is the point families most often get wrong in the other direction, assuming they need a license to do what a nurse just taught them. Title 22's aide regulations govern paid, agency-employed home health aides. They don't reach into a family's own home to regulate what an unpaid family member does for their own relative. Hospitals routinely teach a spouse or adult child to change a specific dressing before discharge precisely because that teaching, not a license, is what makes it reasonable.
The real question isn't "is this legal" — it almost always is — it's "was this actually taught properly, and does someone know when it's time to call a nurse instead." A wound that looks the same on day three as it did on day one is a very different situation from one where the drainage has changed color or the surrounding skin has started to feel warm, and a family member who was shown one dressing change once isn't the person who should be making that distinction alone.
Does Medicare require a licensed nurse for wound care to be covered?
For Medicare to pay for it, yes. Wound care for a pressure sore or surgical wound is explicitly listed among the skilled nursing services Medicare's home health benefit covers — the kind of care that "can only be safely and effectively performed by, or under the supervision of, professionals or technical personnel" (Medicare, "Home health services"). That's precisely why Medicare draws its own separate line: custodial or personal care is excluded when it's the only care someone needs, and coverage requires a physician-certified plan and a homebound patient receiving intermittent, skilled visits — not ongoing hands-on help with a wound between those visits (Medicare, "Home health services").
That gap — a wound that needs more frequent or more hands-on attention than a Medicare-covered visit schedule provides — is exactly where private-pay nursing tends to get called in, not to replace the home health visits but to cover the hours and the judgment calls between them. This page explains how in-home private nursing fills that specific gap.
If a wound is part of what's being planned for at discharge right now, getting the scope-of-practice question right at the start — who's actually going to do the dressing changes, and under whose supervision — is one of the easier things to settle early and one of the more consequential things to get wrong. Read how nurse-led discharge advocacy works if that planning conversation is still ahead of you.
Frequently asked questions
Can a CNA or home health aide remove staples or sutures?
No. That falls well outside non-sterile dressing changes on a stable wound and requires a licensed nurse or physician. If staples or sutures are due to come out, that's a task to schedule with a nurse, not something to attempt at home informally.
What actually makes a dressing "sterile" versus "non-sterile" in legal terms?
The regulation itself doesn't define a bright clinical line — it draws the boundary at what the aide has been specifically taught and deemed competent to do for that patient. In practice, a sterile technique is typically required for a fresh surgical wound or one at meaningful infection risk, while a well-healing wound with intact surrounding skin is more often handled as non-sterile. When in doubt, that judgment call belongs to the nurse who assessed the wound, not the person doing the dressing change.
Can a family member be trained to do wound care instead of hiring an agency?
Yes, and it happens constantly — hospitals teach family caregivers specific wound-care tasks before discharge as standard practice. The regulation limiting who can perform wound care governs paid, licensed providers; it doesn't apply to what a family does for its own relative. The real safeguard is proper teaching and knowing when a change in the wound means it's time to call a nurse.
Does California law require a written care plan for wound care at home?
For licensed providers, yes in substance — an LVN's wound care has to be directed by a physician or RN, and a home health aide's task has to be one specifically taught for that patient by a health professional. Neither of those happens without some documented plan behind it, even if the family never sees a formal document labeled "care plan."
What happens if an unlicensed person performs wound care beyond what they're trained for and something goes wrong?
That's precisely the scenario the licensing structure exists to prevent — keeping clinical judgment with someone trained to recognize when a wound is changing for the worse. If a wound situation feels like it's exceeded what the person currently caring for it can safely judge, that's the signal to bring in a nurse rather than wait and see.
Is wound care covered by Medicare home health?
Skilled wound care for a pressure sore or surgical wound is explicitly covered under Medicare's home health benefit, delivered on an intermittent, physician-certified visit schedule. It does not cover ongoing custodial wound care as a stand-alone service, and it does not cover the hours between visits if a wound needs more frequent hands-on attention than the visit schedule provides.