To learn more about breast cancer, you can access information from the National Cancer Institute below.
To view breast cancer booklets and/or download for use in your planner, please select from the options below.
ASCO Answers Fact Sheet
ASCO Answers Fact Sheet in Spanish
NCCN Guidelines for Patients Booklet: DCIS
NCCN Guidelines for Patients Booklet: Invasive
CancerCare Treatment Update Booklet

Breast Cancer – Did You Know?
- The most common signs and symptoms of breast cancer include a lump or thickening in the breast or under the arm, changes in the size or shape of the breast, nipple discharge that’s sudden, bloody or occurs in one breast and/or physical changes to the nipple area. Additional signs include skin irritation or changes such as puckering or dimpling, warm, red swollen breasts and/or persistent pain in the breast.1
- Risk factors associated with breast cancer include alcohol consumption, being overweight or obese, not being physically active, and some birth control methods.2 Other risk factors include personal and family history, and having dense breast tissue, which can also make cancer difficult to detect on mammograms. Approximately 5% to 10% of breast cancer diagnoses are thought to be hereditary, and caused by gene mutations (e.g. BRCA1 and BRCA2).3
- You can connect with other people that have breast cancer online, in person and/or via telephone, which can help you learn about your condition and provide you with support.
- You can access additional information on metatastic breast cancer here.
Show Your Support!
October is Breast Cancer Awareness Month
Looking for Additional Resources?
We’ve curated additional breast cancer resources to help you access important information and support by the phase you’re interested in, whether it’s prevention, symptoms and tests, new diagnosis, treatment, clinical trials or long-term management. You can also be matched to programs that can help with issues you may be facing, whether it’s the cost of care, you’re feeling alone or another obstacle. Resources can also be filtered by the medium you prefer, whether it’s a book, website, hotline, podcast, online community, mobile app, among others!