NON-MODIFIABLE RISK FACTORS   MODIFIABLE RISK FACTORS    Gender   Age   Personal breast cancer history   Family history   Proliferative breast conditions   Breast density   Early menstruation/ Late menopause    Radiation exposure   Reproduction   Breastfeeding   Hormone replacement therapy   Oral contraceptives   Body weight   Physical activity   Alcohol use   Tobacco smoke (for younger women)

There is research evidence to establish the above risk factors as being linked to breast cancer risk. Non-modifiable risk factors are those which cannot be changed or controlled. Modifiable risk factors are those which can potentially be changed or controlled.

Some of the modifiable risk factors for breast cancer are related to healthy lifestyle, such as body weight, physical activity, alcohol use and tobacco smoke. Additional healthy lifestyle considerations for which current scientific evidence is either preliminary or inconclusive are diet and environmental factors. Click here for information on healthy lifestyle and breast cancer risk reduction.