A breast radiologist answers your mammogram questions

Oct 20, 2026

If you’re preparing for your first mammogram or you’ve had several but still feel a little nervous beforehand, you’re not alone. Routine ung thư vú screening is recommended for anyone age 40 or older with breast tissue, but sometimes taking that first step can feel overwhelming.

ĐỌC CŨNG | You never forget your first time: getting a mammogram

Get the answers to some of the most commonly asked questions about sàng lọc ung thư vú from breast radiologist Dr. Anjali Malik, so you can feel more confident and prepared before your next mammogram.

Does getting a mammogram hurt?

Mammograms compress your breasts to spread the breast tissue out and get the best picture. The compression can be uncomfortable for some, but most patients tolerate it just fine.

ĐỌC CŨNG | Five myths about breast cancer

But pain is subjective, and if you are someone with sensitive breasts, consider taking a pain reliever about 45 minutes before your exam. Scheduling your mammogram for a time when you don’t have your period can also minimize any associated pain.

Do I need to schedule my mammogram during a specific time of the month?

Your breast tenderness and hormones fluctuate throughout the month as you go through your menstrual cycle. I recommend scheduling mid-cycle when breast tenderness is usually lowest and hormonal changes are less likely to make the exam uncomfortable.

A typical menstrual cycle lasts approximately 28 days, so the ideal window for a mammogram would be around day 14, or a week after your period ends (you stop bleeding).

Is the radiation from a mammogram safe?

The radiation from mammograms is absolutely safe and within the U.S. Food and Drug Administration (FDA) limits for exposure levels. In fact, the dose is similar to what you would experience from taking a flight across the Atlantic Ocean.

Can I wear antiperspirant or deodorant during my mammogram?

We ask patients to avoid antiperspirant or deodorant before a mammogram because residue from the product can be left on the surface of your skin that can make the mammogram difficult to interpret or can cause findings that mimic cancer. Antiperspirant and deodorant are safe to use and are not linked to breast cancer.

How long does a mammogram take?

A standard 2D mammogram captures four images, and each image takes a few seconds each. Depending on your anatomy (your breast tissue, breast size, etc.), you may require extra images.

Your technologist will also ask you a series of questions, often to help calculate your personal risk and give the radiologist information about your personal and family health history.

When all is said and done, typical screening appointments can take anywhere from 15-30 minutes.

Can I get a mammogram if I’m pregnant or breastfeeding (chest feeding)?

Yes. According to the American College of Radiology, screening mammograms may be performed on people who are pregnant or lactating.
If you are breastfeeding (chest feeding), it’s recommended to pump or feed before your mammogram so your radiologist can better interpret your mammogram images. If you are weaning but still lactating, it is still safe to get a mammogram as it does not harm the milk or the baby.

Do I still need a mammogram if I have breast implants or reconstructed breasts?

Yes. Mammograms can (and should) still be performed on people with breast implants or if you’ve had breast surgery, such as a breast reduction, lift, lumpectomy or flap reconstruction. Make sure to tell your technologist or radiologist so they’re aware of your breast surgery history.

If both your breasts have been surgically removed (double mastectomy), you no longer need to get routine mammograms, but you should follow the guidance of your breast surgeon and health care team.

What does it mean if I need follow-up imaging?

Your breasts are active organs which means they can have changes that aren’t cancer, but that might require observation to determine if they are not cancer (also known as benign). Most often, this will be a six-month follow-up, but you could be asked to come in for follow-up imaging anywhere from one to twelve months after your initial screening.

Can breast size affect a mammogram?

No, but your radiologist may take more images if you have larger breasts to ensure they can look at all of the breast tissue.
How does dense breast tissue affect my mammogram?

Dense breast tissue can make it difficult to identify small, invasive breast cancers and can also increase your risk of developing breast cancer. Depending on your breasts, your radiologist may recommend more sensitive imaging with an ultrasound or magnetic resonance imaging (MRI).

ĐỌC CŨNG | How to navigate dense breasts—before, during and after your mammogram

Preparing for your mammogram doesn’t have to be overwhelming. When you understand the process, you’re far more likely to stay on schedule and achieve better outcomes.