Top 10 causes of cancer?

Here are the top 10 major causes and risk factors for cancer, based on widely accepted medical research:

Top 10 Causes of Cancer

1. Tobacco Use
   Smoking and other tobacco products are the leading cause of lung, throat, mouth, and many other cancers.

2. Poor Diet
   Diets high in processed meats, red meat, sugary foods, and low in fruits/vegetables increase cancer risk.

3. Obesity & Lack of Physical Activity
   Excess body weight is linked to breast, colon, kidney, and many other cancers.

4. Alcohol Consumption
   Regular alcohol intake raises risk of liver, breast, mouth, and esophageal cancers.

5. Exposure to UV Radiation
   Sun exposure and tanning beds cause skin cancers, including melanoma.

6. Infections
   Certain infections lead to cancer, such as:

   • HPV → cervical, throat cancers

   • Hepatitis B & C → liver cancer

   • Helicobacter pylori → stomach cancer

7. Environmental & Occupational Exposures
   Chemicals like asbestos, benzene, and arsenic increase cancer risk.

8. Air Pollution
   Linked especially to lung cancer and other respiratory cancers.

9. Genetic Factors & Family History
   Inherited gene mutations (e.g., BRCA1/BRCA2) increase risk of breast, ovarian, and other cancers.

10. Hormonal Factors
    Long-term hormone therapy (e.g., estrogen), early menstruation, or late menopause can influence cancer risk.