For nearly three generations, women have been taught that annual Pap smears and mammograms were essential to good health said the New York Times. Now that’s changing. National guidelines urge less frequent screening for breast and cervical cancer.
The U.S. Preventive Services Task Force (USPSTF), a group of primary care providers, authored some of the new guidelines. The new guidelines recommend most women start regular breast cancer screening at age 50, not 40.
Mammograms should then be done every two years. Women, 65 and older should get screened every two years through age 74. There’s insufficient evidence mammogram screening is effective for women age 75 and older.
These recommendations don’t apply to women with unusual risk factors for breast cancer.
One of the main reasons behind the new guidelines is to reduce harm from overtreatment.
Mayo Clinic said according to the USPSTF, women who have mammograms die of breast cancer less frequently than women who don't. However, the USPSTF said the benefits of mammograms don't outweigh the harms for women ages 40 to 49.
Potential harms may include false-positive results that lead to unneeded breast biopsies and accompanying anxiety and distress.
The New York Times wrote the harms are nearly cut in half when women have mammograms every other year instead of every year. But the benefits are almost unchanged.
Similar guideline changes have been made in recent years for cervical cancer screenings. No longer are annual Pap smears necessary.
Both the USPSTF and the American College of Obstetricians and Gynecologists (ACOG) say women should wait longer to begin cervical cancer screenings and be screened less frequently.
All women should start screening at age 21 and have a Pap smear every three years. For women 30 and over, Pap tests should be done every three years. The guidelines also recommend against screening women over 65 who have had adequate prior screening and are not otherwise at high risk for cervical cancer.