Global Cancer Deaths 2018: WHO Estimates and Leading Cancer Types

According to the World Health Organization (WHO), cancer was the second leading cause of death globally in 2018, accounting for an estimated 9.6 million deaths (1 in 6 deaths worldwide). The burden continues to rise due to population growth, aging, and changing risk factor profiles.

Top 5 Cancer Deaths (2018)

1. Lung: 1.76 million deaths (leading in men; rising in women).
2. Colorectal: 862,000 deaths.
3. Liver: 782,000 deaths.
4. Stomach: 783,000 deaths.
5. Breast: 627,000 deaths (leading in women).

Key Context

• Regional Variation: Liver/stomach cancers dominate in Asia; lung/breast/colorectal in high-income countries.
• Modifiable Risks: Tobacco (~22% of cancer deaths), alcohol, diet, inactivity, infections (HPV, HBV/HCV, H. pylori), occupational/environmental carcinogens.
• Prevention Potential: 30–50% of cancers are preventable through risk reduction and vaccination.

Data Currency

Statistics evolve. For current estimates, consult:

• WHO Global Health Observatory (who.int/data/gho)
• IARC Globocan (gco.iarc.fr)
• American Cancer Society (cancer.org)
• National cancer registries.

Accurate, up-to-date data drives effective cancer control planning and resource allocation.