It is also significant to develop some breast cancer tests of your own, that you can do on a normal basis in between mammograms. As soon as you strike puberty, it’s an excellent idea to conduct self breast cancer tests as this begins the period where your probability of suffering breast cancer begins. Most cases of breast cancer are in women over 40, but there are a number of cases found in girls as young as early teens each year. Also, most people don’t understand that breast cancer can also occur in men! While it’s limited to about one percent of the total cases, still there is strong possibility of this fact.