Serena Williams has drawn attention to dense breasts after describing a morning of breast exams on November 2, 2026. The former tennis champion said breast density requires extra attention during screening. Her disclosure highlights questions about mammogram accuracy, federal breast-density notifications, and the screening recommendations available to women across the United States.
Key Takeaways
- Serena Williams disclosed on November 2 that she has very dense breasts and takes extra care with screenings
- Nearly half of women ages 40 and older who undergo mammograms have dense breast tissue, according to the National Cancer Institute
- U.S. mammography facilities have been required to notify patients about breast density since September 2024
- Medical organizations offer different screening schedules, while recommendations for additional imaging depend on individual circumstances
Serena Williams Shares Why She Pays Close Attention to Screening
Serena Williams said a recent round of breast examinations reinforced the importance of maintaining attention to breast health beyond Breast Cancer Awareness Month. In a November 2 post on X, the 45-year-old former tennis champion described undergoing several examinations before explaining a detail about her breast tissue.
“I have very dense breasts, so I have to be extra thorough with my screenings,” Williams wrote.
She also reminded followers that breast cancer awareness should continue after October and encouraged women to remain current with recommended examinations.
Her statement did not specify which examinations she received, whether additional imaging was performed, or what the results showed. Williams did not announce a breast cancer diagnosis, and her disclosure should not be interpreted as confirmation of an abnormal finding.
The message follows Williams’ earlier involvement in breast cancer awareness efforts, including her participation in the I Touch Myself Project in 2018. Her latest remarks focused on her personal screening experience and the importance she places on regular examinations.
Dense Breasts Can Make Mammogram Images Harder to Interpret
The National Cancer Institute estimates that nearly half of women ages 40 and older who receive mammograms have dense breasts. Breast density reflects the proportion of glandular and fibrous tissue compared with fatty tissue, as assessed by a radiologist reviewing mammogram images.
Dense tissue appears white on mammograms, while fatty tissue appears darker. Some cancers also appear white, potentially making suspicious areas more difficult to distinguish from surrounding dense tissue.
The institute identifies higher breast density as one factor associated with increased breast cancer risk. However, having dense breasts does not mean cancer is present, and tissue density alone cannot determine an individual’s likelihood of developing the disease.
Radiologists use four categories to describe breast composition. The first two indicate predominantly fatty tissue or scattered areas of density. The other categories, heterogeneously dense and extremely dense, are classified as dense because the greater proportion of dense tissue can affect how clearly some abnormalities appear.
Breast density can also change over time. Age, inherited characteristics, and certain hormonal treatments may influence the amount of dense tissue visible on imaging. Neither breast size nor physical examination can reliably establish a density category.
The distinction between detecting cancer and estimating future risk also matters when considering AI-based breast cancer risk assessments. Some systems analyze existing mammogram images to estimate risk over a defined period, but these estimates are not cancer diagnoses and do not replace clinical interpretation of screening findings.
For patients with dense breasts, understanding the limitations of mammography can help inform discussions about additional testing. The need for further evaluation depends on screening results, medical history, and other recognized risk factors.
U.S. Mammogram Notices Now Identify Breast Density
Since September 10, 2024, U.S. mammography facilities covered by federal regulations have been required to notify patients whether their breast tissue is dense or not dense. The Food and Drug Administration also requires medical reports to describe breast density using one of four categories.
The notification does not mean cancer has been detected. A patient can have dense breast tissue and a mammogram with no suspicious findings. The requirement is intended to provide information that can support discussions about screening limitations and individual risk.
For average-risk women ages 40 through 74, the U.S. Preventive Services Task Force recommends a screening mammogram every two years.
The American Cancer Society recommends a different schedule. Women ages 40 through 44 may choose annual screening, while women ages 45 through 54 should receive mammograms every year. Beginning at 55, women may continue annual screening or switch to examinations every two years, depending on health circumstances and preferences.
Mammography is one component of preventive health screenings for women, and the appropriate schedule can vary with personal risk. Clinicians may consider family history, previous breast findings, and other medical information when discussing screening and follow-up.
For women with dense breasts, additional ultrasound or magnetic resonance imaging may be considered in certain circumstances. However, the task force found insufficient evidence to recommend for or against routine supplemental ultrasound or MRI when a patient has dense breasts but an otherwise negative mammogram.
That determination does not prohibit additional imaging. Decisions depend on individual clinical circumstances, including the possible benefits of further testing and the likelihood of false-positive findings that could lead to unnecessary procedures.
Separately, the Centers for Disease Control and Prevention advises medical evaluation for breast changes such as a new lump, skin dimpling, unexpected nipple discharge, or changes in breast shape. These symptoms warrant attention even when a recent screening mammogram has shown no suspicious abnormalities.
Frequently Asked Questions
What did Serena Williams say about her breast health?
Serena Williams said on November 2, 2026, that she has very dense breasts and takes extra care with her screenings. She did not disclose examination results or announce a breast cancer diagnosis.
Are dense breasts unusual?
No. According to the National Cancer Institute, nearly half of women ages 40 and older who undergo mammograms have dense breasts. Breast density is determined through imaging rather than physical appearance or touch.
Do dense breasts mean breast cancer is present?
No. Dense breasts can make certain changes harder to detect on a mammogram and are associated with increased breast cancer risk. Breast density itself is not a cancer diagnosis.
Do women with dense breasts need additional scans?
Not necessarily. The U.S. Preventive Services Task Force found insufficient evidence to recommend for or against routine supplemental ultrasound or MRI after an otherwise negative mammogram, so decisions depend on individual risk and clinical guidance.
Disclaimer: This article is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. Breast density, cancer risk, and screening recommendations vary by individual. Readers should consult a qualified healthcare professional for personalized guidance about breast health, screening options, or concerning symptoms.
