ENT Liu Knowledge Base Head & neck tumours · physician reviewed
Nasopharyngeal Carcinoma · Prevention & risk

What are the risk factors for nasopharyngeal carcinoma?

Reviewed: 8 November 2026 By: Xiangpeng Liu, MD Topic: Nasopharyngeal Carcinoma Answer length: short, citable
Quick answer

The main recognised risk factors for nasopharyngeal carcinoma are epstein–Barr virus infection and high or persistently detectable plasma EBV DNA, family clustering and inherited HLA / genetic susceptibility in endemic populations and frequent consumption of salt-preserved fish and cured foods, especially in childhood. Risks differ by region: South-East Asia has a distinctive exposure pattern, so a patient's country of residence is part of the risk assessment. Having a risk factor does not mean a person will develop cancer.

In detail

Risk factors are probabilistic. Many patients have no obvious exposure, and most people with an exposure never develop a head and neck tumour. Tell your clinician about all tobacco, areca nut, alcohol, occupational and viral exposures, because this information changes follow-up planning.

  • Epstein–Barr virus infection and high or persistently detectable plasma EBV DNA
  • Family clustering and inherited HLA / genetic susceptibility in endemic populations
  • Frequent consumption of salt-preserved fish and cured foods, especially in childhood
  • Cigarette smoking and heavy alcohol use (stronger association with the keratinising subtype)
  • Occupational exposure to wood dust, formaldehyde and certain solvents
  • Male sex — incidence is roughly two to three times higher in men

What this means in practice: this answer is part of the “Prevention & risk” section of the Nasopharyngeal Carcinoma topic. If you are comparing treatment options, also read how to compare a second opinion and which records to send.

Other common questions about nasopharyngeal carcinoma

See all 15 questions in this topic →

Sources for this answer

  1. Nasopharyngeal cancer statistics (GLOBOCAN 2022 country rankings) World Cancer Research Fund International · 2022
  2. Nasopharyngeal Carcinoma in Southeast Asia: Current Landscape and Future Priorities Frontiers / British Journal of Biomedical Science partnership · 2025 · 83.3% of the 120,434 global NPC cases in 2022 occurred in Asia.
  3. Global Cancer Observatory (GLOBOCAN 2022) International Agency for Research on Cancer / WHO · 2022 · Source of worldwide and country-level incidence and mortality estimates.
  4. Global incidence of lip, oral cavity, and pharyngeal cancers by subsite in 2022 CA: A Cancer Journal for Clinicians · 2026 · Subsite-level estimates for 185 countries; the basis of the regional atlas on this site.

Written and medically reviewed by Xiangpeng Liu, MD

Associate Chief Physician, ENT & Head/Neck Surgery · Chenzhou First People’s Hospital, Chenzhou, Hunan, China

Editorial policy & reviewer credentials · All sources

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Medical disclaimer: This knowledge base is general information for people researching head and neck tumours, not a diagnosis or treatment plan. It does not replace an examination by a qualified physician. Survival figures are population averages, not predictions for an individual. Treatment and cost estimates for China are illustrative only and must be confirmed in writing after your records have been reviewed. If you have a symptom lasting more than two to three weeks, see a doctor promptly.