How long must a patient cease smoking before surgery?

Patients are generally advised to cease smoking for one to two weeks before undergoing surgery. This timeframe is crucial for various reasons. Smoking can significantly impair the body's ability to heal and increases the risks of complications during and after surgical procedures. Nicotine constricts blood vessels, which can limit blood flow to the surgical site and hinder the healing process. Additionally, smoking affects the lungs and can increase the risk of respiratory issues during anesthesia.

Stopping smoking for one to two weeks allows the body to start clearing the harmful chemicals from tobacco, improves blood circulation, and enhances oxygen delivery to tissues. This reduction in risk is particularly important for elective surgeries where recovery time is critical. The recommendation is based on evidence supporting improved surgical outcomes when patients avoid smoking for at least that duration prior to surgery.