Factors associated with an increased risk of breast cancer
| Family history |
|---|
| Early menarche (<12 years) |
| Late first pregnancy (after 28 years) |
| Current use of the OCP and for 10 years after |
| Nulliparity |
| Late menopause |
| Prolonged use of HRT (particularly combined therapy) |
| Significant weight gain in adult life |
| Proliferative breast disease on biopsy (not benign disease such as a fibroadenoma) |