If you have already been diagnosed with breast cancer, your risk of developing it again is higher than if you had never had the disease. The risk is about 1% per year, so that over a 10-year period, your risk would be about 10%.
Despite this risk, establishing a healthy lifestyle, adding exercise, and following a more enlightened diet can help fortify you against recurrence of breast cancer.
In addition, many women with a past history of breast cancer can use medications like tamoxifen to help reduce the risk of recurrence. Several clinical studies have shown that tamoxifen helps reduce the recurrence of breast cancer.