Lung Cancer Eradication Day (Haigan Bokumetsu Day)

What Is Lung Cancer Eradication Day?

November 17 is "Lung Cancer Eradication Day." It was established by the Japan Lung Cancer Society 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 exactly why regular screening for early detection is the single most important factor in saving lives.

Risk Factors for Lung Cancer

• Smoking: Smokers face a 4 to 10 times higher risk of developing lung cancer 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: A more detailed exam that's especially effective for high-risk individuals (ages 50–74 with a history of smoking)
• Quitting smoking: It's never too late to quit — risk approaches that of a non-smoker after 10 to 15 smoke-free years

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.