ca615598_Preventive_Services_Task_Force__Recommendation
[Population] Women, Before the Age of 50 Years [Grade (What's This?)] The USPSTF recommends against routinely providing the service. There may be considerations that support providing the service in an individual patient. There is at least moderate certainty that the net benefit is small. [Recommendation] 
The decision to start regular, biennial screening mammography before the age of 50 years should be an individual one and take patient context into account, including the patient's values regarding specific benefits and harms.
Final Update Summary: Breast Cancer: Screening - US Preventive Services Task Force
Recommendation