Mammography is the most reliable method for identifying breast cancer in its earliest stages – when it's easiest to cure. With early detection and treatment, 90 percent of all breast cancers can be cured. Mammography uses low dose X-ray to create vivid images of the breast tissue. Current guidelines from the American Cancer Society recommend that women have a mammogram every year beginning at age 40. An annual mammogram should be part of every woman's breast care, along with monthly self-examinations and annual physical checkups.