Organization	Mammography			Clinical breast examination	Breast self-examination
	When to begin	Frequency	When to discontinue
AAFP and USPSTF	50 years of age; consider at 40 to 49 years of age based on discussion of values, benefits, and harms	Biennially	Insufficient evidence to recommend for or against screening in women 75 years and older	Insufficient evidence to recommend for or against	Recommend against
ACOG	40 years of age	Yearly	No recommendation; consider medical comorbidity and life expectancy when screening women 75 years and older	Every one to three years for women 20 to 39 years of age	Encourage breast self-awareness, which can include self-examination
				Yearly for women 40 years and older
ACS	40 years of age	Yearly	Continue as long as the patient is in good health	Every three years for women 20 to 39 years of age	Optional, starting at 20 years of age
				Yearly for women 40 years and older