Friends, have you heard of triple-negative breast cancer [TNBC]? It’s a particularly aggressive type of breast cancer that can grow and spread faster than other types of breast cancer and has a higher likelihood of recurrence. TNBC is more likely to be in later stages when it is diagnosed, so it may have already started spreading to other parts of the body.

Here’s the part that is especially important for us to know: According to the American Cancer Society (ACS), TNBC is more common in women younger than age 40, who are Black or who have certain gene mutations. This means TNBC may affect women before they even reach the age when annual screening mammograms are recommended for those at average risk.

That’s why now is the time to pay attention. Being breast aware – knowing your body and speaking up when something feels different – is one of the most helpful steps you can take for your health.

There’s a reason people say knowledge is power, and when it comes to your health, that couldn’t be truer. Learning about TNBC and why it is more common in our community can make a difference. Think of this as a place to start, a guide to understanding what TNBC is and what it might mean for you or someone you love.

1. So, Why is TNBC Different Than Other Types of Breast Cancer?

In TNBC, the cancer tests negative for the three most common receptors – estrogen, progesterone and the HER2 protein. The difference with TNBC is that it doesn’t have any of the three receptors that are usually found in other types of breast cancer. Since TNBC lacks these receptors, the cancer tends to grow and divide more quickly than other types, leading it to spread faster.

Although TNBC is considered rare, making up about 10-15% of all breast cancer cases, it has a disproportionate impact on Black women. In fact, Black women are almost twice as likely to be diagnosed with TNBC as white women.

2. What Is My TNBC Risk?

Anyone can develop TNBC and let’s be real – everyone’s risk looks a little different, too. And while things like sex, race/ethnicity, and age can play a role, there’s more to the story.

Other factors that may increase your risk for TNBC include:

Family history of breast cancer
Using birth control pills for more than 10 years
Having dense breast tissue

However, you should know that research has also shown a few factors may lower your risk for TNBC, such as having a first period at age 14 or older and breastfeeding a child.

At the end of the day, knowing these risks is important. Ask all the questions and talk to your doctor about your potential risk.

3. Bottom Line: What You Need to Know

Yes, while TNBC is serious, understanding the facts and being aware of the signs, symptoms, and any changes in your body may help you and your provider detect and diagnose TNBC earlier.

To start, you don’t have to wait for a mammogram to start being breast aware. Getting familiar with how your breasts normally look and feel can make a big difference.

Here are a few things to keep an eye on:

New lumps or thickened areas that feel different from the rest of your breast
Changes in size, shape, or firmness of one or both breasts
Skin changes, like dimpling, puckering, redness, or flaking
Nipple changes, including discharge (that isn’t breast milk) or the nipple turning inward
Pain or swelling that doesn’t go away after your menstrual cycle

These signs and symptoms don’t always mean you have TNBC, but if something feels different, trust your gut and talk to your doctor. Early awareness and self-advocacy are powerful ways to protect your breast health.

You know your body best, and you deserve to work with a provider who will listen to your concerns.

Bottom line, friends, let this be the encouragement and empowerment you need to stay aware and advocate for your health. Stay curious, stay proactive, and surround yourself with care that sees you, hears you, and honors you.

For more resources and information about TNBC, visit UncoverTNBC.com

This content was created for Merck as part of a paid partnership.

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