Smokers & Cosmetic Surgery – The Impact of Smoking

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The clinical evidence on smoking and surgical outcomes is among the most consistent in the literature. Smokers experience higher rates of wound complications, infection, skin necrosis, anaesthetic difficulty, and delayed healing across virtually every type of surgery — and the effect is largest for cosmetic procedures involving extensive tissue dissection or skin flaps. This is not a matter of clinic policy or surgical preference; it is biology. Nicotine constricts the small blood vessels supplying healing tissues, carbon monoxide reduces the oxygen-carrying capacity of blood, and the combined immune and inflammatory effects of cigarette smoking compromise the body’s ability to repair itself.

The good news is that the effect is largely reversible. Patients who stop smoking properly before surgery — for an adequate window and completely rather than partially — recover essentially as well as never-smokers. The challenge is doing it.

How smoking affects surgical outcomes

Several distinct mechanisms contribute to the worse outcomes seen in smokers undergoing surgery:

Nicotine vasoconstriction. The active drug in tobacco narrows small peripheral blood vessels — the same vessels that supply oxygen and nutrients to surgically-elevated tissue flaps and incision edges. Tissues with compromised blood supply heal poorly, are vulnerable to necrosis (tissue death), and are more susceptible to infection. The vasoconstrictive effect is dose-dependent and persists for hours after each cigarette.

Carbon monoxide binding. Cigarette smoke contains carbon monoxide, which binds to haemoglobin in red blood cells with about 200 times the affinity of oxygen. Carbon monoxide–bound haemoglobin cannot carry oxygen. Heavy smokers have measurably reduced oxygen-carrying capacity, which compounds the vasoconstriction effect at the surgical site.

Impaired collagen production. Smoking reduces fibroblast function and collagen synthesis, which slows wound repair and produces worse final scar quality. The effect is most visible in facelift, eyelid surgery, and body contouring procedures where OnabotulinumtoxinAAbobotulinumtoxinAIncobotulinumtoxinAPrabotulinumtoxinALetibotulinumtoxinARimabotulinumtoxinBHyaluronic Acid FillersCalcium Hydroxylapatite FillersPoly-L-lactic Acid FillersPolymethylmethacrylate FillersAutologous Fat GraftingForehead Lines TreatmentGlabellar Frown Lines TreatmentCrow's Feet TreatmentBunny Lines TreatmentChemical Brow LiftLip FlipGummy Smile CorrectionMasseter ReductionJaw SlimmingDimpled Chin SmoothingCobblestone Chin SmoothingNefertiti Neck LiftMicro-BotoxMesotoxHyperhidrosis TreatmentChronic Migraine ReliefBruxism TreatmentTMJ TreatmentCervical Dystonia TreatmentNeck Spasm TreatmentBlepharospasm TreatmentLip AugmentationLip ContouringCheekbone EnhancementTear Trough FillersNasolabial Fold SofteningMarionette Line FillersLiquid RhinoplastyNon-Surgical Nose JobJawline ContouringJawline DefinitionChin AugmentationTemple VolumisingHand RejuvenationAcne Scar Subcision Filling - https://tesamorelinlab.co.uk, visibility matters.

Impaired immune function. Cigarette smoke suppresses several aspects of the immune response, raising the risk of post-operative wound infection and slowing the eradication of any infection that does occur.

Reduced skin elasticity. Long-term smoking damages dermal elastin and collagen, producing thinner, less elastic skin with reduced capacity to retract over reshaped underlying contours. This particularly affects results in body contouring and facial procedures.

Anaesthetic risk. Smokers have more reactive airways and a higher incidence of bronchospasm, laryngospasm, and post-operative pulmonary complications. The risk is concentrated in patients still actively smoking — and reduces substantially with even a few weeks of cessation. See our discussion of airway issues and surgery.