National Mammography Day
October 16
About National Mammography Day
National Mammography Day takes place on Friday, 16 October 2026, falling on the third Friday of October each year. Observed across the United States during Breast Cancer Awareness Month, the day encourages women to schedule a mammogram and reminds the public that early detection is one of the most effective tools available in the fight against breast cancer.
What is National Mammography Day?
National Mammography Day is an annual health observance dedicated to promoting the value of regular mammogram screening. A mammogram is a low-dose X-ray of the breast that can detect tumours long before they can be felt, often at a stage when treatment is most successful. The day is championed by organisations such as the National Breast Cancer Foundation and the American Cancer Society, and it sits at the heart of October’s wider breast cancer awareness efforts. Its core message is simple: booking a screening appointment can save your life.
When is National Mammography Day?
National Mammography Day is held on the third Friday of October every year. In 2026 it falls on Friday, 16 October. Because the date is tied to the third Friday rather than a fixed calendar day, it shifts slightly each year. The table below shows the dates for the next five years.
| Year | Date |
|---|---|
| 2026 | Friday, 16 October |
| 2027 | Friday, 15 October |
| 2028 | Friday, 20 October |
| 2029 | Friday, 19 October |
| 2030 | Friday, 18 October |
Why National Mammography Day Matters
Breast cancer is one of the most commonly diagnosed cancers among women, and screening makes a measurable difference to outcomes. When breast cancer is caught at a localised stage, before it has spread, the five-year relative survival rate is around 99 per cent. Mammography has helped reduce breast cancer mortality in the United States by nearly 40 per cent since 1990, and regular screening cuts the risk of dying from the disease by close to half.
Despite these figures, uptake remains far from universal. Around 40 million screening mammograms are carried out each year in the United States, yet a significant share of eligible women still go without. National Mammography Day exists to close that gap by tackling the practical and emotional barriers that keep people away, from cost and fear to simply never getting around to booking the appointment. One reminder on the right day can prompt a screening that changes the course of a life.
How to Get Involved in National Mammography Day
There are many ways to take part, whether you are due a screening yourself or want to support others.
- Book your mammogram – The single most powerful action you can take is to schedule a screening if you are due one. Women aged 40 and over at average risk are generally advised to have a mammogram every one to two years.
- Encourage someone you love – Remind a mother, sister, partner or friend to book their appointment. A gentle nudge from someone who cares often makes the difference.
- Learn breast self-examination – Familiarise yourself with how your breasts normally look and feel so you can spot any changes early and report them to a doctor.
- Take the mammogram pledge – Many breast cancer charities run online pledges committing you to regular screening. Signing one is a simple way to hold yourself accountable.
- Donate to support the uninsured – Contributions to breast cancer foundations help fund free or low-cost mammograms for women who cannot otherwise afford them.
- Raise awareness online – Share screening facts and personal stories on social media to encourage your network to act, using the day’s hashtags.
- Wear pink – Joining the sea of pink that defines October shows solidarity with patients and survivors and sparks conversations about screening.
- Share your story – If you are a survivor or have supported someone through diagnosis, your experience can give others the courage to get checked.
History of National Mammography Day
National Mammography Day was created in 1993. Congress passed House Joint Resolution 265, which designated 19 October 1993 as the first National Mammography Day and requested that the President issue a proclamation to mark it. President Bill Clinton duly issued Proclamation 6615, formally recognising the observance and urging women to take advantage of mammography screening.
The proclamation underlined the case for early detection, noting that the risk of dying from breast cancer falls sharply when the disease is found in its earlier, more treatable stages. It reflected a growing national consensus, built over the preceding decades, that screening should be a routine part of women’s healthcare rather than a response to symptoms. The day was deliberately placed within October, already established as National Breast Cancer Awareness Month, so that the two campaigns would reinforce one another.
Since then, National Mammography Day has settled into its place on the third Friday of October and has been embraced by hospitals, clinics, charities and advocacy groups across the country. Public figures, including former First Lady Betty Ford, whose openness about her own 1974 diagnosis helped reduce the stigma surrounding the disease, have been credited with shaping the culture of candour and action that the day now represents. What began as a single proclaimed date has grown into an annual fixture that prompts countless screening appointments every autumn.
Noteworthy Facts About National Mammography Day
- The day was first observed on 19 October 1993 following House Joint Resolution 265 and Presidential Proclamation 6615.
- It always falls on the third Friday of October, placing it firmly within Breast Cancer Awareness Month.
- Around 40 million screening mammograms are performed in the United States each year.
- When breast cancer is found at a localised stage, the five-year relative survival rate is approximately 99 per cent.
- Mammography is credited with helping reduce breast cancer mortality in the United States by nearly 40 per cent since 1990.
Frequently Asked Questions
What is National Mammography Day?
It is an annual observance encouraging women to schedule mammogram screening and highlighting the role of early detection in surviving breast cancer. It forms part of October’s Breast Cancer Awareness Month in the United States.
When is National Mammography Day in 2026?
National Mammography Day falls on Friday, 16 October 2026, the third Friday of the month.
At what age should women start having mammograms?
Major health organisations generally recommend that women at average risk begin regular mammogram screening at age 40, with the frequency depending on individual risk factors and medical advice. Those with a family history or other risk factors may need to start earlier, so it is best to discuss your own situation with a doctor.
Spread the Word
Help raise awareness by sharing National Mammography Day with your friends, family, and followers. Use the hashtags #NationalMammographyDay and #NationalMammographyDay2026 on social media. The more people who know about National Mammography Day, the bigger the impact.
Related Awareness Days
- Breast Cancer Awareness Month – The month-long October campaign that National Mammography Day forms part of, raising awareness of the disease worldwide.
- Wear it Pink – A popular fundraising day where people don pink to support breast cancer research and care.
- National Got Checked Day – A wider health observance encouraging people to keep up with routine screenings and check-ups.
Links
- Visit the National Breast Cancer Foundation’s National Mammography Day page
- Explore more awareness days at AwarenessDays.com
National Mammography Day works hand in hand with the broader Breast Cancer Awareness Month, so October is the ideal moment to make screening a priority for yourself and the people you care about.
2026 Health Awareness Calendar
Health and wellbeing awareness days throughout the year. Perfect for clinics, HR teams, and schools.
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