The American Cancer Society recommends yearly mammograms, starting at age 40 and continuing for as long as a woman is in good health.
The Centers for Disease Control and Prevention recommends that women 50 to 74 get a mammogram every two years.
The U.S. Preventive Services Task Force study in 2009 recommended against mammograms for asymptomatic women in their 40s. The task force also recommended that women 75 and older not be screened regularly for breast cancer.
More on breast cancer screenings in the Dallas Morning News.