What Causes Laryngeal Cancer?

Throat cancer—more precisely, cancers arising in the pharynx or larynx—is a complex disease with multiple well-established risk factors. The most significant contributors are tobacco use and heavy alcohol consumption; both independently increase risk, and their combined effect is synergistic, substantially amplifying susceptibility.

Infection with high-risk strains of human papillomavirus (HPV), particularly HPV-16, has emerged as a major cause of oropharyngeal cancers—including those involving the tonsils and base of the tongue—especially in younger, non-smoking individuals. This HPV-associated subset tends to have a more favorable prognosis compared to tobacco- and alcohol-related cases.

Additional risk factors include chronic gastroesophageal reflux disease (GERD), which may contribute to laryngeal irritation and metaplasia over time; poor oral hygiene; occupational exposure to carcinogens such as asbestos, wood dust, or certain industrial chemicals; and a diet low in fruits and vegetables. A history of head and neck radiation—whether therapeutic or environmental—also elevates risk.

Genetic predisposition plays a lesser but notable role: individuals with certain inherited syndromes, such as Fanconi anemia or dyskeratosis congenita, face markedly increased lifetime risk of squamous cell carcinoma of the upper aerodigestive tract.

Early recognition of symptoms—including persistent hoarseness, unexplained throat pain, dysphagia, otalgia, or a neck mass—remains critical for timely diagnosis and improved outcomes. Prevention strategies emphasize smoking cessation, moderation or abstinence from alcohol, HPV vaccination, and regular dental and ENT evaluations for high-risk individuals.