
Understanding bowel cancer
Knowledge is power. Whether you're learning for yourself or someone you care about, understanding bowel cancer is the first step.
Bowel cancer (also called colorectal cancer) affects the large bowel – the colon and rectum. It's New Zealand's second most common cause of cancer death, but when caught early, more than 90% of cases are treatable.

Facts & statistics
What is bowel cancer? Key statistics and what you need to know about the disease in Aotearoa.
Types of bowel cancer
Colon cancer, rectal cancer, anal cancer, polyps, inflammatory bowel disease, and Lynch syndrome.
Staging & grading
What your stage and grade mean, how cancer is classified, and genetic mutations.
Prevention & risk factors
What increases your risk and practical steps you can take to reduce it.
Bowel Cancer Atlas
Interactive data on bowel cancer rates, outcomes, and trends across New Zealand.
Real stories
Hear from New Zealanders who've faced bowel cancer.

“If something doesn't feel right, trust your instincts – keep pushing until you get answers.”
Read Tracy's story →

“If you notice any changes with your bowel motions, talk to your GP.”
Read Edward's story →

“This journey has made me a better person – more compassionate, less reactive, and more grounded.”
Read Kirsten's story →

Worried about symptoms?
Don't wait. Our quick symptom checker takes two minutes and we'll send you an email you can show your GP.

