Breast cancer is a serious disease that often goes undetected due to lack of awareness. Even though exercising and healthy eating can reduce the risk of developing breast cancer the disease is not preventable. The key is to detect it early. One of the leading methods to diagnose breast cancer is called a mammogram. In this post we'll tell you all you need to know about the procedure. What is a mammogram? A mammogram is a diagnostic tool used to detect breast cancer. A low-energy X-ray of the breast is taken to produce an image of the inner breast tissue.