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How smoking and alcohol affect healing after surgery

September 14, 2026 · 4 min read

How smoking and alcohol affect healing after surgery

Before and after surgery, physicians often advise staying away from smoking and alcohol. There are medical reasons for this.

Smoking and nicotine

  • They narrow blood vessels and reduce blood flow to tissues.
  • They slow wound healing and can raise the risk of tissue loss and infection.
  • Nicotine products (gum, patches, e-cigarettes) can have a similar effect; tell your physician what you use.

Alcohol

  • It can interact with anaesthesia and medication.
  • It can increase the tendency to bleed and harm healing.
  • It should be avoided especially while taking painkillers and antibiotics after surgery.

When should you stop?

The time varies with the procedure; many physicians ask for a pause weeks before surgery and throughout recovery. Ask your physician for the exact period.

If stopping is hard

Share this openly with your physician; they can help with support and alternative approaches.

This article is general information; diagnosis and treatment decisions are always made after a physician's examination.

This article is general information, not a diagnosis or treatment recommendation. Consult a physician for a personal assessment.

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