Mammogram test is an X-ray test used to diagnose breast cancer. This screening test helps diagnose cancer at an early stage even before the symptoms begin to occur. Early screening helps in early detection of the disease which in result increases the chances of survival. Women above 40 are highly recommended to go for mammogram screening to ensure themselves safe from breast cancer. Women under the age 40 are also suggested to go for screening on experiencing abnormal changes in the breast, abnormal discharge, presence of lumps or having the family history of breast cancer.