A mammogram is an X-ray image of the breast. It is a very common imaging technique and is done by a device that consists of two firm surfaces, which compress and spreads out the breast. Then the breast images are captured from two different angles in black and white color and displayed on the monitor for the doctor to examine any abnormalities. The set of pictures captured for each breast is known as Mammogram. The test plays a very important role in diagnosing breast cancers at an early stage and hence, reducing the number of death due to breast cancers. It is also helpful in examining any abnormal lumps or growths in the breast tissue. In this technique of screening, the breasts are X-rayed from one side to the other and from top to bottom. However, in a diagnostic mammogram, the focus is on the abnormal tissue or on a particular lump.