If you are a woman who has contracted breast cancer that has yet to metastasize you have an average five-year survival rate of about 86%. What this means is that 86% of all women who have contracted breast cancer survive the disease for at least five years. Though that number is extremely high it is merely an overall average. In many categories the numbers are greater, and the survival rates are better. These numbers of course depend on which stage individuals detect their cancer and seek medical treatment.