Doctors told a woman she was too young for colon cancer and dismissed her symptoms for years. At 22, she was diagnosed with stage 3 colon cancer.

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Kirsten Scheller
Scheller was diagnosed with stage 3 colon cancer at 22. Now 36, she is cancer-free and gets routine screenings.

Kirsten Scheller

A $700 blood test promises to detect 50 different kinds of cancer. The results come with major caveats.

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two vials of blood
Grail's Galleri test uses two vials of blood to screen for over 50 different kinds of cancer.

Darya Komarova/Getty Images

A new report found nearly 4 in 10 cancers are linked to preventable causes. Here are the best ways to lower your risk.

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Woman lacing sneakers
Daily exercise can reduce cancer risk.

Emilija Manevska/Getty Images

Colon cancer is officially the deadliest cancer for people under 50. Experts are shocked at how quickly this happened.

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colon cancer rally dc
Cancer survivors visited a fight colorectal cancer "United in Blue" flag installation on March 10, 2025 in Washington, DC.

Paul Morigi/Getty Images for Fight Colorectal Cancer

He was 37, constipated, and exhausted. What doctors thought was IBS was stage 3 colon cancer.

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Mohammad Samad poses for a photo in a hotel room.
Mohammad Samad was leading a healthy lifestyle when he was diagnosed with colon cancer at age 37.

Mohammad Samad

A 26-year-old was bloated and thought she had hemorrhoids. She was diagnosed with stage 4 colon cancer.

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Mariana Tata
Mariana Tata, 26, had two subtle symptoms of colon cancer before she was diagnosed.

Mariana Tata

I developed stabbing stomach pain as a college football player. It turned out to be stage 4 colon cancer.

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khalil at work
Khalil Smith was a freshman in college when he was diagnosed with Stage IV colon cancer.

Courtesy of Khalil Smith

What causes early-onset colon cancer? New research offers clues

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A collage featuring a young man and an x ray of a colon

Getty Images; Tyler Le/BI

A 42-year-old CEO was diagnosed with colon cancer. It pushed her to trade perfectionism for vulnerability.

Tech Insider : Business, Environment
Jenn Goldsack
Jennifer Goldsack said cancer forced her to redefine what leadership looks like as a CEO.

Thomas Simonetti for BI

A 31-year-old marathon runner thought she had norovirus. She was diagnosed with stage 3 colon cancer.

Tech Insider : Business
Katelyn Jonozzo
Katelyn Jonozzo, 31, had no symptoms of colon cancer and regularly ran marathons.

Katelyn Jonozzo

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