Hi @sequoia, here is the link to the United States Preventive Services Task Force guidance on breast cancer screening https://www.uspreventiveservicestaskforce.org/uspstf/recommendation/breast-cancer-screening
"The Task Force now recommends that all women get screened every other year starting at age 40. This final recommendation also urgently calls for research in key areas."

In the U.S., several medical organizations publish guidelines about mammograms to screen for breast cancer. The organizations give slightly different recommendations on the age women should start getting mammograms and how often to get them. This can make it confusing to know what the “official” guidelines are.

Mayo Clinic continues to recommend starting at age 40 every year. "At Mayo Clinic, health care professionals offer mammograms starting at age 40. Most people should have a mammogram every year." https://www.mayoclinic.org/tests-procedures/mammogram/expert-answers/mammogram-guidelines/faq-20057759

This is also the recommendation of the American College of Radiology, the Society of Breast Imaging, the American Society of Breast Surgeons, and the National Comprehensive Cancer Network.

For women who have already had breast cancer, mammography may be used to monitor for new cancer or returning cancer. It is recommended to stick to your follow-up plan with your cancer team and/or your PCP.

Breastcancer.org explains further and plainly in this article:
- When to Get a Mammogram https://www.breastcancer.org/screening-testing/mammograms/recommendations