ENT Liu Knowledge Base Head & neck tumours · physician reviewed
Lip Cancer · Prevention & risk

What are the risk factors for lip cancer?

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

The main recognised risk factors for lip cancer are cumulative ultraviolet (UV) radiation from sun exposure, especially occupational outdoor work, fair skin (Fitzpatrick I–III), light eyes and a history of childhood sunburn and actinic cheilitis — a precancerous scaling, fissured condition of the lower lip. Risks differ by region: Papua New Guinea & Melanesia 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.

  • Cumulative ultraviolet (UV) radiation from sun exposure, especially occupational outdoor work
  • Fair skin (Fitzpatrick I–III), light eyes and a history of childhood sunburn
  • Actinic cheilitis — a precancerous scaling, fissured condition of the lower lip
  • Tobacco smoking and pipe smoking (particularly for mucosal lip lesions)
  • Immunosuppression after organ transplantation — risk of lip SCC is markedly increased
  • Photosensitising medicines, male sex and age over 60

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

Other common questions about lip cancer

See all 14 questions in this topic →

Sources for this answer

  1. 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.
  2. Trends of lip, oral cavity and oropharyngeal cancers in Australia 1982–2008 BMC Cancer · 2013 · Lip cancer was the dominant oral-region subsite in Australia; strongly UV-related.
  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. Ultraviolet radiation and skin cancer (fact sheet) World Health Organization · 2024

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.