Welcome to Worldwide Breast Cancer!

Worldwide Breast Cancer’s Know Your Lemons campaign is the only truly global breast health education campaign crossing cultural, language and geographic barriers with its powerful design.

Our aim is simple: help save lives around the globe using clever, thoughtfully designed materials to improve early detection of breast cancer.

Corrine Beaumont, PhD, our founder and a leading expert in healthcare communication, invented the “12 Lemons” image seen over 200 million times in 2017. The innovative image allows people all across the globe to understand symptoms of breast cancer no matter their language or level of literacy. 

Our Know Your Lemons materials are in 23 languages and distributed in over 70 countries. The metaphor of a lemon simply and effectively explains what to look and feel for and the important steps to take to detect breast cancer. The lemons can be shown in public without being gory or getting censored and they communicate quickly without needing high levels of motivation or education.

We focus on teaching people how to recognize and report symptoms as early as possible. Until there are cures, finding breast cancer in its earliest stages allows women and men the best chance of survival. When breast cancer is found in early stages (Stages 0-2), successful treatment occurs in 98% of cases.

We welcome and encourage members of the media to contact us with any inquiries.

Katherine Crawford-Gray, CEO l +1 (646) 379-1855 l katherine@worldwidebreastcancer.org



The Facts

About Worldwide Breast Cancer and Know Your Lemons

  • Worldwide Breast Cancer was founded in 2014 by Corrine Beaumont, PhD.

  • Know Your Lemons materials are distributed in 23 languages (Mandarin, Spanish, English, Arabic, Portuguese, Russian, Japanese, German, Malaysian, French, Turkish, Italian, Gujarati, Polish, Myanmar, Romanian, Dutch, Greek, Kinyarwanda, Samoan, Norwegian, Hungarian and Serbo-Croatian)

  • Know Your Lemons materials are distributed in more than 70 countries

  • "What Breast Cancer Can Look and Feel Like" (aka the 12 Lemons) has been viewed over 200 million times in 2017

About Breast Cancer

In the United States:

  • 1 in 8 women will be diagnosed with breast cancer in her lifetime

  • Breast cancer is the most commonly diagnosed cancer in women; it is the 2nd leading cause of cancer death in women after lung cancer

  • Average of diagnosis is 62

  • ~2,470 men will be diagnosed with breast cancer each year

  • Most common risk factors for breast cancer are: being a woman, aging and exposure to estrogen. While risk of breast cancer is increased with exposure to certain genes, 90-95% of breast cancer cases occur in women with no genetic history of breast cancer

  • Today there remains no cures once breast cancer has metastasized beyond the breast

  • 99 percent of women have a better chance of treatment if breast cancer is found in early stages (Stages 0-2)

Outside the US

  • ~1 in 5 breast cancer patients have literacy issues

  • A recent global survey of 19,000 women found only 2% know the signs of breast cancer

  • The same survey found less than half (42%) felt confident they would be able to spot a change indicative of breast cancer

  • Although breast cancer is thought to be a disease of the developed world, almost 50% of breast cancer cases and 58% of deaths occur in less developed countries

  • Breast cancer is the top cancer in women worldwide and is increasing particularly in developing countries where the majority of cases are diagnosed in late stages

  • Low survival rates in less developed countries is mainly due to lack of early detection programmes, resulting in a high proportion of women presenting with late-stage disease (Stages 3-4). Once a woman is diagnosed Stage 4, the cancer is treatable (if treatments are available) but incurable

Breast cancer facts from WHOAmerican Cancer Society, Avon Breast Cancer PromiseSusan G. Komen

Meet Our Founder - Corrine Ellsworth Beaumont, PhD


Corrine is the founder of Worldwide Breast Cancer and inventor of Know Your Lemons, an innovative campaign teaching about the symptoms of breast cancer and the process for detection. Her groundbreaking work is creating a new paradigm of healthcare communication and has been viewed by over 200 million people worldwide. Because the familiar, friendly lemon crosses common healthcare communication barriers of literacy, taboo and fear, Know Your Lemons is the only truly global breast cancer education campaign.

Corrine’s passion for educating people everywhere is fueled from her two grandmothers and a close friend dying of metastatic breast cancer. Driven to take action against the disease, she learned just about everything there is to know about breast cancer detection and treatment, and studied the psychological effects of healthcare communication.

After receiving her PhD in design Corrine took the findings from her doctoral dissertation, Design thinking in healthcare: developing patient-centred communication materials for breast cancer detection, and created Worldwide Breast Cancer.

Today, the Know Your Lemons campaign is used in more than 70 countries and 23 languages - Mandarin, Spanish, English, Arabic, Portuguese, Russian, Japanese, German, Malaysian, French, Turkish, Italian, Gujarati, Polish, Myanmar, Romanian, Dutch, Greek, Kinyarwanda, Samoan, Norwegian, Hungarian and Serbo-Croatian.

In 2017, Corrine and Know Your Lemons were features on CNN, BBC News, ITV, various radio stations and numerous publications in the health, beauty, medical and design fields. The list continues to grow.

Corrine holds a MFA and BFA in graphic design from Utah State University, as well as a PhD in design from Buckinghamshire University and Brunel University. She has held a variety of teaching positions at Kingston University and consulted widely with the healthcare industry.



Here’s What People are Saying About US


This ad saved my life! As I ran my fingers across a lump in my breast, this exact image came to me immediately knowing the dimple was not normal. Diagnosed with invasive breast cancer and 10 tumors later… know your lemons ladies! @walk_n_wag, shared on Instagram

Thank you for making this in German. Now I can understand it better and I will send this picture to all my friends so they can check it! @anjacalling, shared on Instagram

I’m only 32, I’m really bad at feeling for lumps, then I found your page; then continued to the website. From there I started feeling and actually ended up finding a lump in my left breast. I have a mammogram scheduled for Monday! Thank you for always posting and informing women on how to be aware of their bodies, I know I am thankful for coming across this page. I’m hoping for the best at my app.  @deucedeuce, shared on Instagram

@knowyourlemons I'm so thankful for your campaign! Because I remembered seeing it on my cousin’s Facebook, I knew I had to get myself checked out when I noticed a small dent. Who knew? @jojojojog, shared on Instagram

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