Why Early Cancer Detection Matters: Finding Cancer Earlier Can Change the Outlook

When it comes to cancer, knowledge can be powerful, especially when it comes early.

Today, advances in screening, detection, and treatment are helping more people survive cancer. According to the National Cancer Institute, overall cancer death rates in the United States have continued to decline. But one factor remains especially important: how early a cancer is found.¹

For women thinking proactively about their health, understanding early detection, and keeping up with recommended screening, can help turn uncertainty into informed action.

What does "early detection" actually mean?

Early detection means finding cancer before it has spread extensively, often before symptoms develop. Screening tests are designed to look for signs of cancer in people who do not have symptoms.

Why does timing matter? Cancer that remains localized to the organ where it began can often be treated more successfully than cancer that has spread to distant areas of the body.

The difference can be substantial.

According to current National Cancer Institute (NCI) Surveillance, Epidemiology, and End Results (SEER) data, five-year relative survival varies considerably by both cancer type and stage at diagnosis.²

Five-Year Relative Survival by Cancer Type and Stage

*Recent NCI/SEER reporting places overall lung cancer five-year relative survival at approximately 28%.

These numbers don't predict what will happen to a specific individual. Age, overall health, genetics, cancer biology, tumor characteristics, available treatments, response to treatment, and other factors all affect prognosis. But across cancer types, stage-at-diagnosis can have a major influence on survival.

This is one reason early detection matters.

Early detection has already helped save lives

The impact isn't theoretical.

A 2024 NCI-led analysis examined deaths from five major cancers - breast, cervical, colorectal, lung, and prostate - from 1975 through 2020. Researchers estimated that improvements in prevention and screening, together with treatment advances, helped avert millions of deaths. Across the five cancers, prevention and screening accounted for most of the estimated 4.75 million deaths averted.³

The contribution of screening differs by cancer, and improved treatments are also essential. Still, research reinforces an important message: finding or preventing cancer earlier can make a meaningful difference at the population level.

What does early detection mean for breast cancer?

Breast cancer provides a particularly clear example.

Current SEER data show that five-year relative survival for female breast cancer is 91.9% overall. When breast cancer is localized, five-year relative survival is 100%. When it has spread to distant parts of the body, that figure is 33.8%.²

There has also been significant progress over time. NCI reports that breast cancer mortality declined by approximately 44% from 1989 to 2022, reflecting advances that include earlier detection through screening and improved treatment.⁴

Those improvements don't mean breast cancer should be taken lightly. They demonstrate why appropriate screening, timely follow-up, and effective treatment matter.

When should breast cancer screening begin?

For women at average risk, the U.S. Preventive Services Task Force (USPSTF) recommends mammography every two years from ages 40 through 74. The recommendation applies to women at average risk as well as women with certain increased-risk factors, including having dense breasts or a first-degree family history of breast cancer.⁵ Groups such as the American Cancer Society (ACS), American College of Radiology (ACR), and American College of Obstetricians and Gynecologists (ACOG) have their own guidelines regarding when screening should begin and how often mammograms should be performed.

Breast Cancer Screening Guidelines Comparison

Average-Risk Women (2024-2025 Guidelines)

Women at higher risk may need a different screening approach. Your personal and family history, genetic risk, previous breast findings, and other factors can affect what is appropriate for you.

That makes a conversation with your healthcare provider an important part of proactive breast health.

What if you have dense breasts?

Breast density is another piece of information worth knowing.

Dense breast tissue can make breast cancer more difficult to see on a mammogram because both dense breast tissue and some cancers can appear white. Dense breasts are also associated with increased breast cancer risk.

Since September 2024, FDA mammography regulations have required mammography facilities to notify patients about breast density in their results.⁶

If you are told that you have dense breasts, it does not mean you have breast cancer. It means you have information that can help guide a more informed conversation with your healthcare provider.

The USPSTF currently concludes that evidence is insufficient to recommend for or against supplemental ultrasound or MRI after a negative mammogram solely because a woman has dense breasts.⁵ Individual circumstances matter, so your provider can help you understand your risk and whether additional evaluation may be appropriate.

Your screening result is information. Use it.

Being proactive doesn't mean having every available test. It means understanding your health, following evidence-based screening recommendations, and asking informed questions when something isn't clear.

Consider asking your healthcare provider:

• Am I up to date on my recommended breast cancer screening?

• Do I have dense breasts?

• What is my personal breast cancer risk?

• Does my family history change my screening plan?

• If my mammogram is unclear or additional evaluation is recommended, what are my next steps?

• Are there other appropriate options that could provide additional information?

For women with dense breasts, conversations about next steps can be especially important. Certitude™ is a blood-based option designed to support care decisions and provide another layer of insight. It is designed to support next steps, not replace standard breast cancer screening.

The goal isn't to pursue more testing simply for the sake of testing. It is to have the information you and your healthcare provider need to make thoughtful decisions about your care.

Take the next step

Know when you are due for breast cancer screening, understand your breast density, and talk with your healthcare provider about your individual risk and the screening approach that is appropriate for you.

If dense breasts or an unclear screening result leaves you with questions, ask your provider what additional steps may be appropriate - and whether Certitude could play a supportive role in your care.