Lung Cancer Eradication Day (Haigan Bokumetsu Day)

What Is Lung Cancer Eradication Day?

November 17 is "Lung Cancer Eradication Day." It was established at the International Association for the Study of Lung Cancer's World Conference held in Tokyo in September 2000. The date was chosen because the third week of November is observed as an anti-smoking awareness week in the United States. The day aims to raise public awareness about lung cancer and highlight the importance of early detection and early treatment. Internationally, November is recognized as "Lung Cancer Awareness Month," with white as its designated awareness color.

The Current State of Lung Cancer — the Leading Cause of Cancer Death in Japan

Lung cancer claims roughly 75,000 lives in Japan every year, making it the number one cause of cancer death overall (combining men and women). In its early stages, lung cancer is often almost entirely asymptomatic, and by the time symptoms such as a cough, bloody sputum, or shortness of breath appear, the disease has often already progressed significantly. That's why finding it early through regular screening is considered so important.

Risk Factors for Lung Cancer

• Smoking: Smokers are said to face a risk of lung cancer several times higher than non-smokers. Secondhand smoke also increases risk
• Asbestos exposure: Past occupational exposure in industries such as construction and shipbuilding can be a contributing factor
• Radon gas: A naturally occurring radioactive gas that can accumulate underground or in enclosed spaces
• Air pollution: Long-term exposure to fine particulate matter such as PM2.5
• Family history: Risk is somewhat elevated if a close relative has had lung cancer

Key Points for Screening and Prevention

• Chest X-ray: The basic lung cancer screening available through municipal health checkups
• Low-dose CT scan: Positioned as a screening method for higher-risk people, such as heavy smokers. Ask your doctor or local government whether it is right for you
• Quitting smoking: It's never too late to quit — the longer you stay smoke-free, the lower your lung cancer risk is said to become

Lung Cancer Eradication Day is a day to take stock of your own lung health, and that of the people you care about. If you've noticed a persistent cough or have been feeling more short of breath than usual, don't hesitate to consult a doctor.