The main risk factors for the development of breast cancer are:
- Family history or genetic predisposition: having a close family member (mother, sister or daughter) who has had cancer of the breast, ovaries or uterus,
- Personal history: having already been affected by breast cancer,
- Age: 78% of cases of breast cancer involve women over the age of 50,
- Hormonal factors,
- Breast density,
- Use of oral contraceptives and hormone treatments: there is an ongoing debate on the link between these drugs and cancer,
- Obesity or a diet that is too high in fat,
- Tobacco and/or alcohol