One Mammogram Isn’t Enough: Why Annual Screening Saves Lives

One Mammogram Isn’t Enough: Why Annual Screening Saves Lives
Dr. Aman Daftary
Breast Imaging Expert
Most women remember their first mammogram.
You probably felt good once it was done. The test that initially made you a bit anxious was quickly over. After all, it’s just taking pictures. The report arrived. Everything was normal. Life moved on.
And that is exactly where a problem begins.
Many women view a mammogram as a one-time test; something to do once and then forget.
But breast cancer screening does not work that way.
Mammography is most powerful when it’s regular. The real benefit comes when it’s an annual habit.
As a doctor, I wish this was the lesson every woman absorbed.
A clear report is not a lifetime assurance
Imagine checking your blood sugar once and assuming it will never change.
Or servicing your car once and expecting it to run perfectly forever.
It sounds unreasonable when we think about it that way. Isn’t it?
Yet many women approach mammograms the same way.
A normal mammogram is reassuring, but it only tells us about your breast health on that particular day – when the test was done.
New abnormalities can develop. Small changes can appear. Risks can evolve.
That is why annual screening matters.
The goal is not just to know that everything looks normal today. It is to keep watching for changes in the years ahead.
Consistency is the key
One of the most common questions I hear is:
“If my last mammogram was normal, do I really need one more next year?”
The answer is yes.
Not because something is expected to go wrong.
But because regular screening is meant to monitor change.
A normal mammogram this year does not predict what will happen next year.
Think of annual screening as an ongoing conversation with your body.
Each mammogram adds another piece of clarity about your breast health.
The more mammograms you have, the easier it is to detect changes early.
When you have no consistency
Most women do not actively decide to stop screening.
A story I see unfold so often in my practice goes something like this.
A woman gets her first mammogram in her early forties. The report is normal. She feels good.
The following year becomes busy. Screening slips her mind.
The year after that, there is work pressure, family commitments, and other priorities.
Before she realises it, three or four years have passed.
When she finally returns for another mammogram, one of the first things the radiologist wants to see is the previous report and images.
Why?
Because comparing current images with earlier ones can reveal subtle changes that may otherwise be difficult to detect.
Early-stage breast cancer can cause no pain, no visible changes, and no warning signs that you can feel yourself.
This is why annual mammography remains one of the most effective tools for early detection.
It helps find potential problems before they announce themselves with symptoms.
What about self-exams?
Some women rely only on self-examinations.
A self-exam can only detect what your hands can feel, by which time the tumour is likely big and in a later stage.
But a mammogram can detect abnormalities very early, long before your hands can notice.
That difference is critical.
Early detection of breast cancer dramatically improves the chances of simpler treatment, complete cure and disease-free survival, with 93% or higher survival rates in the first five years.[1]
Early treatment can also reduce emotional stress and financial burden for families.
Hence, mammography remains the most effective tool for early detection.
About 3D mammography
3D mammography (or tomosynthesis) technology has made breast screening very advanced.
Unlike conventional 2D mammography, 3D (tomosynthesis) captures a series of images of the breast from different angles.
This allows earlier detection of early, tiny cancers that may otherwise be harder to identify.
3D (tomosynthesis) mammography can be particularly useful for women with dense breast tissue.
While the most important step is getting screened regularly, choosing 3D mammography where available may provide increased detection rates.
Small habit. Big impact
Many life-saving health habits are surprisingly simple.
Wearing a seatbelt. Checking blood pressure. Scheduling preventive health check-ups.
Annual mammograms belong in the same category.
They do not require major lifestyle changes.
They do not demand hours every week.
Yet they can have a profound impact on your future health.
The challenge is not the test itself.
The challenge is to remember that prevention works best when it is repeated.
All women above 40 are recommended to undergo annual mammography screening.
Women with higher risk factors, such as a family history of breast cancer, genetic risk, dense breasts, late motherhood, or limited breastfeeding, may be advised to begin screening earlier than 40.
Find your personal risk profile from your doctor and create a screening plan that is right for you.
Don’t wait for a reminder, a symptom, or a scare
If you have been qualified based on your age or risk factors for regular breast screening:
Do not wait until you notice a lump.
Do not wait until life becomes less busy.
Do not wait until someone you know is diagnosed with breast cancer.
And do not assume that a normal mammogram from a few years ago is good enough.
Because it is not.
Lifelong screening at a doctor-prescribed frequency is important to detect the smallest changes early, intervene quickly when required and stay safe.
Make your next mammogram always a priority
Your health is your greatest gift to the people you love.
Early detection keeps that gift going.
If your last mammogram was more than a year ago, consider these five steps right away.
- Here are three easy steps to help you choose the right mammography centre.
- Now find a 3D mammography centre near you.
- Schedule your next mammogram today.
- Mark the date on your calendar so that you won’t forget.
- Commit to an annual (or as advised by your doctor) mammography plan and make it non-negotiable.
When it comes to breast cancer, consistency is not just a good habit. It can be lifesaving.
Book your next mammogram today. A simple test that can save your life!

Dr. Aman Daftary
Consultant Radiologist & Breast Imaging Specialist
P. D. Hinduja Hospital and Medical Research Centre, Mahim and
Innovision Imaging, Peddar Road
Mumbai
- https://www.carolmilgardbreastcenter.org/for-patients/facts-myths/early-detection-is-key/ Accessed on 29 July 2026
