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Secondhand smoke and lung cancer

Secondhand smoke and lung cancer

Overview

Secondhand smoke has been classified as a known cause of lung cancer in humans (Group A carcinogen).

Review Date 7/23/2024

Updated by: Linda J. Vorvick, MD, Clinical Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.