As defined, breast cancer is a malignant growth that begins in the tissues of the breast. Its cause is still quite uncertain, but it happens when there is an abnormal growth of breast cells. It is considered to be the most common cancer in women, although men can also suffer from it. Older women are more prone to developing breast cancer, however, in rare cases; younger women have been diagnosed with the illness. Learning how to check yourself for breast cancer involves several steps that you can do personally or with the assistance of experts or specialists. Time is essential and early detection is the most important thing.