Bowel Cancer Myths That Need Busting

Bowel cancer is surrounded by a lot of myths. Some are harmless. Others are downright dangerous. And for younger Aussies especially, believing the wrong information can delay diagnosis, treatment, and even survival.

Let’s bust some of the biggest bowel cancer myths that desperately need to die off, starting now.

Myth 1: Only old people get bowel cancer

Nope. Early-onset bowel cancer (diagnosed under 50) is rising fast. It is one of the fastest-growing cancer rates among young adults in Australia. In fact, people in their 20s, 30s and 40s are increasingly being diagnosed, often at later stages because no one expects it.

Myth 2: You’d have obvious symptoms if you had bowel cancer

Not always. Some people have classic symptoms like blood in the stool or dramatic weight loss. Others have vague stuff, a bit of bloating, going to the toilet more often, or mild fatigue. Some have no symptoms at all until the cancer is advanced. Never assume “no major symptoms” means “no cancer.”

Myth 3: Bowel cancer is always genetic

Most cases actually are not. While hereditary syndromes like Lynch syndrome or FAP exist, the majority of bowel cancer diagnoses happen without any known family history. Genes can increase risk, but lifestyle factors, random mutations, and bad luck also play huge roles.

Myth 4: If you’re fit and healthy, you’re not at risk

Fitness does not make you invincible. Plenty of young, healthy people with great diets and active lifestyles still get bowel cancer. Healthy living can lower your risk, but it is not a guarantee.

Myth 5: Screening is only for people over 50

Australia has dropped the national bowel screening age to 45. And if you have symptoms, bloody stool, changes in bowel habits, abdominal pain, you need to get checked, no matter your age. Do not wait for a kit in the mail. Push for a colonoscopy if you are worried.

Myth 6: Blood in the poo is just haemorrhoids

Maybe. But maybe not. Blood in the stool should never be ignored. Even if it is likely to be haemorrhoids or a small tear, you cannot know without proper medical investigation. Bowel cancer is very treatable when caught early. Do not brush it off.

Myth 7: Bowel cancer is slow-growing, so you have time

Some are. Some are not. Early-onset bowel cancers often behave more aggressively. Waiting a few months to “see if it goes away” can be the difference between catching it at stage 1 versus stage 3 or 4. Do not risk it.

Myth 8: Bowel cancer only affects men

Wrong. Men and women are both at risk. In Australia, bowel cancer is the second deadliest cancer for both sexes combined. Women are just as capable of ignoring symptoms, being misdiagnosed, or delaying getting checked out.

Myth 9: You would feel sick if you had cancer

You might feel sick. You might feel totally fine. Early bowel cancer often grows silently. Many people are diagnosed while feeling completely normal, even while cancer is spreading internally.

Myth 10: Bowel cancer is rare

It is not. It is the second most common cancer in Australia when you combine men and women. Over 15,000 Australians are diagnosed every year and that number is rising among younger adults.

Myth 11: Surgery means you will have a stoma forever

Not necessarily. Many bowel surgeries are able to reconnect the bowel without a permanent stoma (colostomy or ileostomy). Some patients need a temporary stoma to heal, and others do need a permanent one. But it is not automatic.

Myth 12: A clear stool test means you are fine

The National Bowel Cancer Screening Program uses stool tests (FIT tests) to pick up hidden blood. They are helpful, but not perfect. A negative result does not rule out cancer. If you have symptoms, you still need proper investigation.

Myth 13: You are too young for bowel cancer

One of the most damaging myths. Young people are exactly young enough to be part of a fast-growing statistic. Age does not protect you. Awareness does.

Myth 14: It must be diet-related if you get bowel cancer young

Diet can play a role, but many young patients lived healthy lives before diagnosis. It is not as simple as “ate too much meat” or “not enough veggies.” Cancer is complex, and blame does not belong on the patient.

Myth 15: Bowel cancer is easy to treat

Early-stage bowel cancer can often be treated with surgery alone. But once it is advanced, treatment becomes much more complicated, often involving chemotherapy, targeted therapies, radiation, multiple surgeries, and long-term follow-up. There is nothing easy about it.

Myth 16: If you survive five years, you are cured

Five years is a milestone, not a magic number. Some people relapse after five years. Others stay cancer-free for life. The risk never fully disappears. That is why long-term surveillance is so important.

Myth 17: You should tough it out if symptoms are mild

Australians are great at the “she’ll be right” attitude. But cancer does not care if you are tough. Ignoring symptoms because they are “probably nothing” is how people end up diagnosed late. Always better to check.

Myth 18: If your GP is not worried, you should not be either

Most GPs are fantastic. But young people are often misdiagnosed or dismissed. If you know something is wrong, push harder. Get a second opinion. Advocate for yourself. Bowel Cancer Australia’s Never Too Young initiative is working hard to educate GPs about these risks, but until the system catches up, trust your gut.

Final Thought

There are two things you should take away from all of this. First: bowel cancer is not just an old person’s disease anymore. And second: you do not have to tick every symptom box, every risk factor, or every stereotype to be at risk. If something feels off, get it checked. Push if you have to. Your life is worth that fight.

For more support, resources, and help navigating bowel cancer as a younger adult, visit Bowel Cancer Australia or check out more patient blogs right here on Grinding Chemo.