What Causes Breast Cancer-

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 Top 20 Causes and Risk Factors of Breast Cancer?

Breast cancer can develop due to a combination of genetic, hormonal, lifestyle, and environmental factors. Here are 20 possible causes and risk factors:

Genetic & Biological Factors:

1. Family History – A history of breast cancer in close relatives (mother, sister, or daughter) increases risk.

2. Inherited Gene Mutations – Mutations in BRCA1, BRCA2, TP53, and other genes can significantly raise the risk.

3. Age – The risk increases with age, especially after 50.

4. Dense Breast Tissue – Women with dense breast tissue have a higher likelihood of developing breast cancer.

5. Personal History of Breast Cancer – If you've had breast cancer before, you're more likely to get it again.

6. Early Menstruation – Starting menstruation before age 12 increases lifetime exposure to estrogen, raising risk.

7. Late Menopause – Going through menopause after 55 prolongs estrogen exposure.

Hormonal & Reproductive Factors:

8. Hormone Replacement Therapy (HRT) – Long-term use of estrogen and progesterone therapy can increase risk.

9. Birth Control Pills – Some studies suggest a slight increase in breast cancer risk with oral contraceptive use.

10. Late or No Pregnancy – Having a first child after 30 or never having children can increase risk.

11. Not Breastfeeding – Breastfeeding may help lower breast cancer risk by reducing estrogen levels.

Lifestyle Factors:

12. Obesity – Being overweight, especially after menopause, increases risk due to higher estrogen levels.

13. Lack of Physical Activity – Sedentary lifestyles are linked to a higher risk of breast cancer.

14. Alcohol Consumption – Regular alcohol intake (even in moderate amounts) increases the risk.

15. Unhealthy Diet – A diet high in processed foods, unhealthy fats, and low in fruits/vegetables may contribute to risk.

Environmental & Medical Factors:

16. Radiation Exposure – Prior radiation therapy to the chest, especially at a young age, increases risk.

17. Exposure to Endocrine Disruptors – Chemicals like BPA (found in plastics) may interfere with hormone levels.

18. Smoking – Tobacco use is linked to an increased risk of breast cancer.

19. Night Shift Work – Some studies suggest that working night shifts disrupts melatonin levels, potentially increasing risk.

20. Chronic Inflammation – Conditions that cause long-term inflammation (e.g., autoimmune diseases) might contribute to cancer.



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