Risk factors for breast cancer

 1. Age

The risk of breast cancer increases with age. At 20 years, the chance of developing breast cancer in the next decade is 0.06%. By the age of 70 years, this figure goes up to 3.84%.

2. Genetics

Women who carry certain mutations in the BRCA1 and BRCA2 genes have a higher chance of developing breast cancer

3. A history of breast cancer or breast lumps

Women who have previously had breast cancer are more likely to have it again than those who have no history of the disease.

4. Dense breast tissue

Women with more dense breasts are more likely to receive a diagnosis of breast cancer

5. Estrogen exposure and breastfeeding

Breastfeeding, especially for over 1 year, appears to reduce the chance of developing breast cancer. This is possibly due to the drop in estrogen exposure that follows pregnancy and breastfeeding.

6. Body weight

Women who become overweight or develop obesity after menopause may also have a higher chance of developing breast cancer, possibly due to increased estrogen levels. High sugar intake may also be a factor.

7. Alcohol consumption

A higher rate of regular alcohol consumption appears to play a role in breast cancer development.

8. Radiation exposure

Undergoing radiation treatment for a different cancer may increase the risk of developing breast cancer later in life.