Head and neck cancer, currently the sixth most common cancer globally, is proving to be a growing health concern, particularly in Hong Kong where incidence rates are higher than the worldwide average. A new global study led by researchers at The Chinese University of Hong Kong (CUHK) sheds light on regional disparities in the disease, offering insights that could improve prevention and treatment strategies.
The research, published March 20, 2026, in the international medical journal MedComm, found that globally, men are twice as likely to develop head and neck cancer as women, though the incidence among women is increasing in many regions. Individuals aged 50 to 74 are eight times more likely to be diagnosed than those younger than 50. These findings underscore the importance of targeted screening and preventative measures for specific populations.
Head and neck cancers encompass malignancies of the mouth, throat, nasal cavity, pharynx, and salivary glands. Key risk factors include smoking, alcohol consumption, chewing tobacco, and infection with the human papillomavirus (HPV). According to the study data, an estimated 9.8 cases of head and neck cancer are diagnosed per 100,000 people worldwide annually, with men accounting for approximately three times as many cases as women.
The study analyzed data from 45 countries, revealing significant trends in cancer rates. Fourteen countries showed a notable increase in head and neck cancer cases, with the most substantial rises observed in Spain, Italy, India, the United Kingdom, and China. Conversely, 13 countries experienced a significant decline. Researchers suggest that higher Human Development Index (HDI) scores – indicating greater focus on quality of life and health – and stricter tobacco control policies may contribute to these decreases.
The research also highlighted gender-specific trends. In 14 countries, the incidence of head and neck cancer among women is rising, while it is decreasing in five. Researchers point to increasing HPV infection rates and rising numbers of women who smoke as potential contributing factors, according to a European study. The findings could guide future vaccination strategies and public health campaigns aimed at reducing cancer risk in women.
Effective public health policies, such as smoking cessation programs and increased HPV prevention measures, are demonstrably linked to lower rates of head and neck cancer, the study confirmed.
