Which factor is commonly associated with laryngeal cancer?

Which factor is commonly associated with laryngeal cancer?

• A. Smoking
• B. Alcohol consumption
• C. High salt intake
• D. Exposure to loud noise

Answer: (A)

Smoking is the most commonly linked factor with laryngeal cancer because tobacco smoke contains many carcinogens that directly irritate and mutate the lining of the larynx. Repeated exposure causes DNA damage in the squamous cells, leading to malignant transformation over time. The risk increases with how much and how long someone smokes, and quitting lowers risk gradually but does not immediately return to baseline. Alcohol consumption also increases risk and tends to have a synergistic effect with smoking, meaning the combined exposure raises risk more than either factor alone. Other choices like high salt intake or exposure to loud noise are not established major risk factors for laryngeal cancer.

Smoking is the most commonly linked factor with laryngeal cancer because tobacco smoke contains many carcinogens that directly irritate and mutate the lining of the larynx. Repeated exposure causes DNA damage in the squamous cells, leading to malignant transformation over time. The risk increases with how much and how long someone smokes, and quitting lowers risk gradually but does not immediately return to baseline.

Alcohol consumption also increases risk and tends to have a synergistic effect with smoking, meaning the combined exposure raises risk more than either factor alone. Other choices like high salt intake or exposure to loud noise are not established major risk factors for laryngeal cancer.