Trusted breast cancer information starts with the right source for the question. NCI and CDC support public education; organizations such as USPSTF and ACS publish screening guidance; ASCO develops professional recommendations; and FDA sources define U.S. drug approvals. These resources serve different purposes and should not be treated as interchangeable.
Use the guide below to match a question to an authoritative resource, then check its population, evidence level, and update date.
Breast cancer information sources by use case
| Resource | Use it for | Keep in mind |
|---|---|---|
| National Cancer Institute | Biology, diagnosis, treatment overviews, genetics, and trials. | An overview does not replace individual clinical assessment. |
| CDC Breast Cancer | Public-health education and screening basics. | Not a detailed oncology treatment guideline. |
| USPSTF | U.S. preventive screening recommendations. | Check the population and high-risk exclusions. |
| American Cancer Society | Public education, screening guidance, and support. | Its screening guidance differs from USPSTF guidance. |
| ASCO Guidelines | Professional guidance for defined oncology questions. | Read the setting, publication date, and updates. |
| FDA oncology notifications | U.S. oncology approval announcements. | Confirm the current indication in prescribing information. |
| NCI breast cancer research | Research programs, findings, and study updates. | Emerging results may not yet be established clinical practice. |
How to compare different recommendations
Organizations may differ in their breast cancer screening recommendations because they address different populations, use different evidence cutoff dates, or weigh benefits and harms differently. A difference does not automatically mean that one source is unreliable.
The practical approach is to cite the organization explicitly, include the date or version when relevant, and avoid turning one guideline into a universal statement. “The USPSTF recommends…” is more precise than “women should…” because it preserves the source and population.
How to verify a treatment approval
For a U.S. treatment-indication question, check the FDA approval notice and the current prescribing information. Confirm the cancer setting, biomarker definition, prior treatment requirements, and whether the drug is used alone or in combination. Record the source date: an accurate older article may not describe later label changes. FDA oncology approval notifications and Drugs@FDA.
A practical order for checking sources
- For basic biology and patient education: start with NCI or CDC.
- For screening recommendations: cite the specific guideline organization, such as USPSTF or ACS.
- For professional treatment guidance: use current ASCO and other specialty guidelines relevant to the exact clinical setting.
- For U.S. drug indications: verify FDA approval notices and current prescribing information.
- For an emerging scientific claim: read the primary paper, then check whether guidelines or regulators have acted on it.
Use these sources to separate an interesting biological finding from an established clinical use. For primary literature, genomic data, or model selection, the next step is to choose among breast cancer research databases according to the question you want to answer.
This article is intended for scientific education and does not provide individualized medical advice, diagnosis, or treatment recommendations.
