I was on a low dose HRT for 2 years immediately following menopause because at the time I had osteopenia (never had menopause symptoms). After the 2nd year I developed breast precancer (required surgery and now have ugly scars) and had to stop HRT because doctor said it can be a cause of cancer. I had no risk factors, no one in family with breast cancer, never smoked, not overweight. I am sorry I ever took HRT.