Oral Cancer Awareness: Risks, HPV Links, and Prevention

April has been designated as Oral Cancer Awareness Month in Thailand, highlighting growing concerns over the rising incidence of oral cancer, particularly among younger populations linked to human papillomavirus (HPV) infection. Health officials report that approximately nine people are diagnosed with oral cancer each day in the country, with recent data showing an increase in cases among younger adults, a trend attributed to HPV transmission through oral sexual contact. This upward trend contrasts with historical patterns where oral cancer primarily affected older individuals with long-term tobacco and alcohol use.

According to the latest public health updates, oral cancer remains one of the most prevalent cancers in Thailand, especially in regions with high rates of betel quid chewing, smoking, and alcohol consumption. However, emerging evidence indicates a shift in etiology, with HPV—particularly HPV-16—now identified as a significant risk factor for oropharyngeal cancers, including those affecting the base of the tongue, tonsils, and throat. Unlike traditional risk factors, HPV-related oral cancers often develop in younger, non-smoking individuals, making early detection more challenging without routine screening.

Health experts emphasize that many oral cancer cases are asymptomatic in early stages, leading to delayed diagnosis and poorer outcomes. Symptoms such as persistent mouth sores, unexplained bleeding, difficulty swallowing, or a lump in the neck may be overlooked or mistaken for minor infections. Without regular oral health examinations, these warning signs can go undetected until the cancer has advanced, reducing treatment effectiveness and survival rates.

Preventive strategies now include promoting HPV vaccination, which is recommended for adolescents before potential exposure to the virus. The vaccine has been shown to significantly reduce the risk of HPV infection and associated cancers, including cervical, anal, and oropharyngeal cancers. Public health campaigns during Oral Cancer Awareness Month focus on educating the public about the link between HPV and oral cancer, encouraging vaccination, and advocating for routine dental check-ups that include oral cancer screenings.

Dental professionals are being urged to perform visual and tactile examinations during routine visits, looking for abnormalities such as red or white patches, ulcers that do not heal within two weeks, or unusual tissue growth. While no single test can definitively diagnose oral cancer during a basic screening, suspicious lesions can be referred for biopsy and further evaluation. Early detection through regular dental care remains one of the most effective ways to improve prognosis.

Despite advances in awareness, challenges persist in reaching at-risk populations, particularly in rural areas where access to dental care and HPV vaccination programs may be limited. Cultural factors, stigma around discussing sexual health, and low awareness of HPV’s role in oral cancer continue to hinder prevention efforts. Health authorities are working to integrate oral cancer education into broader school-based health programs and community outreach initiatives to improve knowledge and uptake of preventive measures.

As Thailand observes Oral Cancer Awareness Month, health officials stress the importance of combining vaccination, regular screening, and public education to combat the rising trend of HPV-related oral cancers. While tobacco and alcohol remain significant risk factors, the changing epidemiology underscores the need for updated public health strategies that address both traditional and emerging causes of the disease. Continued surveillance, research, and accessible healthcare services are essential to reducing the burden of oral cancer across all age groups.