10 Facts Behind Breast Cancer Myths that Every Woman Should Know

Breast Cancer
Originally Published:
January 11, 2021
Updated:
March 27, 2025
Read Time:
4 min
Author:
10 Facts Behind Breast Cancer Myths that Every Woman Should Know

Despite the abundance of information available about breast cancer, several common myths continue to create confusion—and even delay early diagnosis and treatment. Let’s separate fact from fiction so you can take charge of your breast health with confidence.

Myth #1: Finding a Lump Means You Have Cancer

Fact: Not all breast lumps are cancerous. Many are caused by cysts, hormonal fluctuations, or benign conditions. However, if you find a lump that feels hard, irregular, or changes over time, consult your doctor right away. Learn more about how to tell if a breast lump is cancerous.

Myth #2: Breast Pain Means You Have Breast Cancer

Fact: Breast cancer rarely causes pain. Occasional tenderness is common with menstrual cycles. But if pain persists or occurs alongside other symptoms like nipple changes or lumps, it’s worth getting evaluated.

Myth #3: Breast Cancer Is Mostly Genetic

Fact: Only about 10% of breast cancer cases are due to inherited gene mutations (like BRCA1 or BRCA2). The majority result from lifestyle and environmental factors. Regular screenings, healthy eating, and physical activity can significantly reduce your risk.

Myth #4: Only Women Get Breast Cancer

Fact: Men can also get breast cancer—though it's rare. Because it's often diagnosed late, the prognosis can be worse. Awareness and early detection matter for everyone.

Man checking his chest for unusual lumps or changes
Breast cancer doesn’t only affect women—men should also watch for unusual lumps or changes.

Myth #5: Only Older Women Get Breast Cancer

Fact: While age increases risk, young women can and do get breast cancer—sometimes more aggressive forms. That’s why knowing the early signs and symptoms is vital regardless of age.

Myth #6: Underwire Bras Increase Cancer Risk

Fact: There is no scientific evidence linking underwire bras to breast cancer. This myth has been widely debunked by organizations such as the American Cancer Society.

Myth #7: Deodorants Cause Breast Cancer

Fact: No clinical research shows that using deodorant increases your breast cancer risk. The body eliminates toxins via the kidneys and liver, not your underarm sweat glands.

Myth #8: Breast Cancer Is One Disease

Fact: There are multiple subtypes of breast cancer—such as triple-negative, HER2-positive, and hormone receptor-positive. Each one behaves differently and requires unique treatment strategies.

Myth #9: Stress Causes Breast Cancer

Fact: While chronic stress impacts your overall health, no conclusive evidence links stress as a direct cause of breast cancer. That said, managing stress remains important for mental and physical well-being.

Myth #10: Mammograms Cause Cancer

Fact: Mammograms use a very low dose of radiation—far less than what you’re exposed to in everyday life. Early detection via mammograms can save lives by finding cancer when it’s most treatable. Learn more about why early detection improves survival.

BASS Medical Group: Expert Breast Care in the Bay Area

At BASS Cancer Center, our experienced breast surgeons and imaging specialists provide comprehensive care, including advanced diagnostics, personalized treatment plans, and long-term support.

Need a screening or have concerns about your breast health? Visit our Imaging Center for a mammogram or schedule an appointment with our Primary Care team to get started.

Medical Disclaimer: The information provided in this blog is for educational and informational purposes only and is not intended as medical advice, diagnosis, or treatment. BASS Medical Group does not endorse any specific tests, treatments, procedures, or opinions referenced in this content. Individual results may vary. Always consult with your physician or a qualified healthcare provider regarding any medical concerns or before making changes to your health regimen.