What Is Mammography?

Mammography is a special X-ray test that helps doctors look for early signs of breast cancer. This screening tool can find changes in breast tissue before you feel a lump. Because mammography can spot problems early, it is a key part of women’s health care. According to the CDC, regular mammograms can lower the risk of dying from breast cancer. Many women get mammograms as part of routine breast cancer screening.

Who Needs Mammography?

Most women over a certain age should have mammograms. However, some people may need them earlier. Here are some groups who may need mammography:

Women aged 40 and older, as most guidelines suggest starting at this age

Women with a family history of breast cancer, especially in a mother or sister

Women with certain genetic risks, such as BRCA1 or BRCA2 gene changes

People who have had breast cancer before

Men with a strong family history or certain genetic risks, though this is rare

For some, doctors may suggest starting screening earlier or having more frequent tests. Always talk with your health care provider about your personal risk factors.

When to Start Mammography?

Guidelines for when to start mammography can vary. Still, most expert groups agree on some basics. For example, the American Cancer Society suggests women with average risk start yearly mammograms at age 45. Some may choose to start as early as age 40. After age 55, women may switch to every two years. If you have higher risk, your doctor may recommend starting earlier or screening more often. Because recommendations can change, check with your provider for advice that fits your needs.

What to Expect During a Mammogram

Many people feel nervous before their first mammogram. However, knowing what to expect can help you feel more at ease. Here is what usually happens:

First, you will be asked to undress from the waist up and wear a gown

Next, a technologist will help place your breast on a flat surface

Then, another plate will press down gently to spread out the tissue

After that, the machine takes X-ray images from different angles

Each breast is done one at a time and the process takes only a few minutes

While the pressure may feel uncomfortable, it should not last long. If you have concerns, let the technologist know before the test begins.

Benefits and Potential Risks of Mammography

Mammography offers many benefits. Most importantly, it can find breast cancer early, when it is easier to treat. Early detection can save lives. Also, regular screening can give you peace of mind. However, there are some risks to consider. For example, mammograms use a small amount of radiation. The risk from this is very low. Sometimes, mammograms may show a spot that is not cancer, which can lead to more tests. Rarely, mammograms may miss a cancer. Still, experts agree that the benefits outweigh the risks for most women.

How to Prepare for Your First Mammogram

Preparing for a mammogram can help make the process smoother. Here are some tips:

Try to schedule your test for a time when your breasts are less tender, such as after your period

On the day of your test, avoid wearing deodorant, lotion, or powder under your arms or on your breasts

Wear a two-piece outfit so you only need to remove your top

Bring any past mammogram images if you are visiting a new clinic

Tell the technologist if you are pregnant, breastfeeding, or have breast implants

Because every person is different, talk with your doctor if you have special concerns or questions about your mammogram.