Skin Necrosis After a Facelift or Tummy Tuck: When the Flap Starts to Die

On the fourth day after a facelift, a patient notices that the skin just behind her ear has gone an odd violet color. It is not bruising, exactly. By day seven it is darker and the surface has a dry, leathery sheen. By day ten there is a black patch the size of a thumbprint, and the surgeon is explaining, gently, that this part of the skin has died and will take several weeks to heal from underneath.

That patch has a name, skin flap necrosis, and it is the sixth subject in a running series on how cosmetic operations go wrong, after the seroma, the facelift hematoma, the incision that opens, the drain, and fat necrosis after grafting. Necrosis belongs at the end of that list because it is where several of the others lead. A hematoma that is not drained, a flap pulled too tight, a smoker who was told not to smoke and did: each of them ends, in the worst case, here.

What skin necrosis actually is

The short answer: skin necrosis is the death of a segment of skin whose blood supply was cut below the minimum it needed, and in cosmetic surgery that segment is almost always the far edge of a flap the surgeon raised on purpose.

Skin is fed from below. A network of vessels in the fat and fascia sends small perforating branches up into the dermis, and a dense plexus just under the skin surface spreads that supply sideways. When a surgeon performs a facelift or an abdominoplasty, the operation requires lifting the skin off that deeper network across a wide area so it can be redraped. The flap survives on whatever blood enters from its still-attached base and travels sideways through the subdermal plexus. The farther a point on the flap is from the base, the less pressure reaches it. The tip is the last place blood arrives and the first place it runs out.

That is why the pattern is so predictable. After a facelift, the danger zone is the skin just behind and below the ear, which sits at the tip of the cheek flap and is also where closing tension is highest. After a tummy tuck, it is the lower midline of the abdominal flap, just above the pubic incision, which is the farthest point from the flap's blood supply under the ribs and the place where the belly button incision has already interrupted some of the circulation. Surgeons have a dry name for the worst version of this in abdominoplasty: the "T-zone" or "triple point," where the vertical umbilical closure meets the horizontal incision.

Necrosis comes in degrees. Epidermolysis is the mildest: the top layer blisters and peels, and the skin beneath is alive and heals in a week or two with a pink patch that fades. Partial-thickness necrosis goes deeper and leaves a wound that closes from the edges over several weeks. Full-thickness necrosis is the black eschar, and under it is a wound that must fill in from the base, which takes weeks to months and always scars.

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The tip of a surgical flap is the last place blood arrives and the first place it runs out. Every lifting operation is a bet on how far that blood will travel.

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How often it happens, and to whom

The short answer: in non-smokers with no other risk factors, meaningful skin necrosis after a facelift runs around 1 to 3 percent and after abdominoplasty somewhere in the low single digits, and smoking multiplies those numbers many times over.

The facelift literature is the clearest on this. Large single-surgeon and multicenter series published in Plastic and Reconstructive Surgery and Aesthetic Surgery Journal put skin slough in the 1 to 3 percent range overall, with the majority of cases small and behind the ear. The figure that has been quoted for decades, and which the American Society of Plastic Surgeons still cites in its patient material, is that smokers carry roughly a twelve-fold higher risk of skin necrosis after a facelift than non-smokers. Some series put it higher. The mechanism is not mysterious: nicotine constricts the very vessels the flap is depending on, and carbon monoxide from combustion lowers the oxygen the blood can carry. A flap that would have survived on a thin margin in a non-smoker does not survive in a smoker.

Abdominoplasty data is broader and messier because the operation varies so much. Reviews of several thousand patients in the CosmetAssure and TOPS databases report wound-healing complications in the 5 to 15 percent range depending on how they are counted, with true flap necrosis a minority of those. Several factors consistently raise the rate:

• Smoking or any nicotine use, including vaping, patches, and pouches. The vasoconstriction is from nicotine, not smoke.
• Higher body mass index, because a heavier flap is thicker, has farther for blood to travel, and is under more tension at closure. Several series show a step up in wound complications above a BMI of 30 and another above 35, which is one reason BMI limits exist.
• Prior abdominal scars, especially a subcostal (gallbladder) incision or an open appendectomy scar, which have already divided part of the flap's lateral blood supply.
• Diabetes and poor glycemic control, for the microvascular reasons covered in the piece on blood sugar and surgery.
• Combining abdominoplasty with aggressive liposuction of the flap itself, which thins it and damages perforators. Modern lipoabdominoplasty technique exists largely to manage this risk, and it does so by preserving specific vessels rather than by suctioning freely.

Age alone is a weaker predictor than most patients assume. A healthy 68-year-old non-smoker has a better-perfused flap than a 40-year-old who vapes.

What the surgeon controls

The short answer: flap design, undermining distance, closing tension, and the decision to stop a bleed before it becomes a hematoma are all in the surgeon's hands, and the differences between techniques are mostly differences in how much blood supply they preserve.

The shift in facelift technique over the last two decades, described elsewhere on this site as the quiet end of the pull-tight facelift, is in part a story about necrosis. The older skin-only lift got its result by undermining widely and pulling the skin hard, and the skin behind the ear paid for it. Deep-plane and SMAS-based techniques move the deeper layer and let the skin be redraped without tension, which means a shorter skin flap under less strain. The published necrosis rates for those approaches are lower, and the reason is mechanical, not magical.

In abdominoplasty, the equivalent shifts have been limiting the width of central undermining to a narrow tunnel over the rectus muscles, preserving the perforating vessels on either side (the Saldanha lipoabdominoplasty principle), and closing with progressive tension sutures that distribute the load across the flap instead of concentrating it at the incision. A flap that is glued down along its length does not have all of its weight hanging from the suture line at the pubis.

Two intraoperative practices matter and are worth asking about. The first is how the surgeon handles the flap in a patient who is borderline: some will deliberately do less, leaving a little more laxity rather than chasing the last centimeter of tightness, because the tight result that dies is worse than the slightly softer result that lives. The second is vigilance about bleeding. A hematoma under a facelift flap raises the pressure in the flap and pushes a marginal blood supply over the edge, which is why necrosis so often follows an unrecognized collection.

There is also the question of epinephrine. Tumescent and local solutions contain it to limit bleeding, and in high concentrations injected directly into a thin flap it can contribute to ischemia. Most surgeons regard ordinary dilutions as safe. It is a legitimate thing for a patient to understand, not a reason to refuse it.

How it is recognized and what is done about it

The short answer: the surgeon watches the color of the flap in the first few days, tries to rescue a struggling edge while it is still dusky, and once skin is frankly dead the treatment is patience, wound care, and time.

The progression is visible if someone is looking. A well-perfused flap is pink and blanches briskly when pressed. A flap in venous trouble turns blue-purple and congested. A flap in arterial trouble goes pale, then mottled, then dusky. The window to change the outcome is in those first days. Releasing a few tight sutures, evacuating a collection, stopping all nicotine immediately, keeping the patient warm and well hydrated, and keeping the head or the hips flexed so the flap is not stretched are the standard moves. Topical nitroglycerin paste to dilate vessels has a modest supporting literature. Hyperbaric oxygen is used in some centers for threatened flaps and has reasonable biological rationale, though the evidence in cosmetic patients is limited and access is inconsistent. Medicinal leeches, which sound archaic, remain a legitimate tool for a flap that is congested rather than starved.

Once an area has demarcated as dead, the approach changes. The eschar is either left in place as a biological dressing while the wound heals beneath it or is debrided once the line between living and dead tissue is clear. The wound under it heals by secondary intention: it fills from the bottom with granulation tissue and contracts from the edges. Behind the ear that might take three to six weeks. In the lower abdomen, a full-thickness loss the size of a palm can take two to three months and may need negative-pressure wound therapy to speed it. Most of these wounds close without a skin graft. Some do not.

The result is a scar that is wider, flatter, and often paler or darker than the surrounding skin, in a location the consent form did not mark. Scar revision is usually possible once the tissue has matured, which takes the better part of a year, and the techniques described in the scar care piece apply. A patient who had a necrotic area should expect a revision conversation, not a promise that it will simply fade.

The part of this that gets neglected is the patient's side of surveillance. Necrosis develops over days, often at home. A patient who has been told what a dusky edge looks like, and who has a number to call on a Sunday, catches it at day three. One who assumes every color is bruising catches it at day ten, when the only option left is wound care.

The honest summary

Skin necrosis is the failure mode that every lifting operation is designed around. The surgeon raises a flap, moves it, and bets on its blood supply. In a healthy non-smoker with a modern technique, that bet pays off more than 97 times out of 100, and the losses are mostly small patches behind the ear or a slow spot above the pubic incision. In a smoker, a patient with a high BMI, or someone whose abdomen has been operated on before, the odds shift badly, and the surgeon who does not change the plan for that patient is gambling with someone else's skin.

The risk factors here are unusually clear and unusually modifiable. Nicotine is the big one, and no amount of surgical skill compensates for it. Beyond that, the questions that matter are about technique: how much tension, how wide the undermining, what is preserved, what is done when an edge looks wrong on day three. A practice that answers those with specifics, tests for nicotine, and is willing to do a smaller operation on a riskier patient is managing the biology. A practice that promises the tightest possible result to everyone, waves off the smoking question, and has no plan for a dusky flap is not offering a better outcome. It is offering a bigger bet, and you are the one who covers it.