When Should You Start Mammograms? Age Guidelines and Breast Cancer Risk Factors Women Should Know
Mammograms are one of the most reliable tools for detecting breast cancer early –often before any symptoms appear. But one common question many women have is: When should I start getting screened?
The answer depends on several factors, including your age, family history, and personal risk profile. Here’s what you should know about when to start mammogram screening, how often to get checked, and what factors may affect your schedule.
Key Pointers
- Most women should begin mammogram screenings around age 40.
- Women with family history or genetic risk may need to start earlier.
- Dense breast tissue can affect screening accuracy and may require additional imaging.
- Regular screenings are crucial for early detection and better outcomes.
- Consult your breast specialist to personalise your screening plan.
What Age Should You Start Mammograms?
In Singapore and many other countries, women aged 40 and above are encouraged to begin routine mammogram screenings.
- Ages 40–49: Screening every year is recommended, as this is when risk starts to increase.
- Ages 50–69: Screening every two years is advised if no new risk factors arise.
If you have no symptoms and no family history of breast cancer, starting at age 40 gives you the best chance of detecting changes early.
Should You Start Earlier If You Have Risk Factors?
Yes. Women at higher risk may need to start mammograms before 40. Risk factors include:
- A mother, sister, or daughter with breast cancer
- A known BRCA1 or BRCA2 genetic mutation
- A personal history of ovarian cancer or chest radiation
- Dense breast tissue, which makes it harder to spot abnormalities on imaging
Your doctor may also recommend complementary imaging tests such as breast ultrasound or MRI depending on your risk profile.
How Often Should You Get a Mammogram?
The frequency depends on your age and individual risk:
- Low-risk women (40–49): Once a year
- Moderate to high-risk women: Once a year or as advised by your doctor
- Low-risk women (50–69): Every two years
Consistent screening is key. Even if your previous mammogram was normal, new changes can occur over time.
Does Breast Density Affect Mammogram Screening?
Yes. Women with dense breasts have more glandular and connective tissue, which can make it harder to detect small changes on a mammogram. Dense tissue also slightly increases the risk of developing breast cancer.
If you have dense breasts, your doctor may recommend ultrasound or MRI scans in addition to regular mammograms for better accuracy.
What If You Notice Breast Changes Before 40?
If you find a lump, experience pain, or notice changes such as nipple discharge, swelling, or skin dimpling, do not wait for your next screening. Schedule a consultation immediately.
Breast symptoms at any age warrant medical evaluation, even if you’ve recently had a clear mammogram.
FAQs About Mammogram Screening
1. Is a mammogram painful? You may feel brief pressure during the scan, but it shouldn’t be painful. The compression lasts only a few seconds per image.
2. Can I do an ultrasound instead of a mammogram? An ultrasound is useful for younger women or those with dense breasts, but it does not replace a mammogram. Both are complementary.
3. How long does a mammogram take? The entire process usually takes 15–20 minutes, including positioning and imaging.
4. Do mammograms expose you to radiation? Yes, but the radiation dose is very low and considered safe. The benefits of early detection far outweigh the small risk.
5. Can I skip screening if I have no symptoms? No. Breast cancer can develop silently. Regular screening is essential for early detection, even if you feel fine.
Book Your Mammogram at The Radhika Breast & General Surgery Clinic
If you’re approaching 40 –or have risk factors that mean you should start earlier– it’s time to take charge of your breast health. Dr Radhika Lakshmanan and the team at The Radhika Breast & General Surgery Clinic offer comprehensive breast assessments and guidance on when and how often to screen.
Book your mammogram screening today to stay proactive about your health. Early detection gives you peace of mind and the best possible protection for the years ahead.


