Español
PDFs by language
Our 24/7 cancer helpline provides information and answers for people dealing with cancer. We can connect you with trained cancer information specialists who will answer questions about a cancer diagnosis and provide guidance and a compassionate ear.
Chat live online
Select the Live Chat button at the bottom of the page
Call us at 1-800-227-2345
Available any time of day or night
Our highly trained specialists are available 24/7 via phone and on weekdays can assist through online chat. We connect patients, caregivers, and family members with essential services and resources at every step of their cancer journey. Ask us how you can get involved and support the fight against cancer. Some of the topics we can assist with include:
For medical questions, we encourage you to review our information with your doctor.
Mammograms are low-dose x-rays that can help find breast cancer. If you've been told you need a mammogram, or you're ready to start breast cancer screening, the topics below can help you know what to expect.
Find out what a mammogram is, why it's done, what doctors look for, and what it's like to get one.
Doctors use a standard system called the Breast Imaging Reporting and Data System (BI-RADS) to describe what they see on a mammogram. Learn how to understand your results, and what it means if your mammograms show dense breast tissue.
If you have had breast cancer in the past, whether or not you need to keep getting mammograms might depend on the type of surgery you had.
If you have breast implants, you can and should get mammograms as recommended. But you might need to have extra pictures taken so the doctor can see as much breast tissue as possible.
The American Cancer Society medical and editorial content team
Our team is made up of doctors and oncology certified nurses with deep knowledge of cancer care as well as editors and translators with extensive experience in medical writing.
Last Revised: January 14, 2022
American Cancer Society medical information is copyrighted material. For reprint requests, please see our Content Usage Policy.
Sign up to stay up-to-date with news, valuable information, and ways to get involved with the American Cancer Society.
If this was helpful, donate to help fund patient support services, research, and cancer content updates.