Bowel cancer, also known as colorectal cancer, is increasingly in the headlines, most recently following the death of actor James Van Der Beek at age 48. The former “Dawson’s Creek” star was diagnosed with the disease at 45, highlighting a concerning trend: rising rates of this cancer among younger populations. While traditionally considered a disease of older adults, diagnoses in individuals under 50 are becoming more frequent, prompting a reevaluation of screening guidelines and a greater focus on early detection.
Colorectal cancer develops when cells in the colon or rectum grow uncontrollably. It’s projected to be the fifth most commonly diagnosed cancer in Australia in 2025, with roughly one in every 21 men and one in every 25 women expected to receive a diagnosis by age 85. However, the increasing incidence in younger adults is prompting concern among medical professionals and researchers.
Australia currently has one of the highest overall rates of bowel cancer internationally, and it remains the second leading cause of cancer-related death in the country. While lifestyle factors play a significant role in about half of all cases – including alcohol consumption, smoking, physical inactivity, diets high in red and processed meat, and low fiber intake – genetics, inflammatory bowel disease, and age also contribute to risk.
The Shift in Incidence: Younger Australians at Risk
Research indicates a worrying trend: between 1982 and 2014, rates of bowel and rectal cancer in Australians aged 50 and under increased by between 1% and 9% per year. This rise is not fully understood, but evidence suggests that changes in lifestyle over time, such as poorer dietary habits, increased alcohol intake, and reduced physical activity, may be contributing factors. Importantly, younger individuals often receive a diagnosis later than older adults, potentially due to a lack of recognition of early symptoms or attributing them to less serious conditions.
Conversely, bowel cancer rates in Australians over 50 have been declining since the 1990s, likely due to the success of screening programs and advancements in treatment. However, even with this decline, the disease remains more common in older adults. In 2021, 1,884 cases were recorded in people under 50, compared to 13,020 in those over 50.
Reducing Your Risk: Three Key Steps
Despite the rising rates, You’ll see proactive steps individuals can take to reduce their risk of developing bowel cancer.
- Participate in Screening: Bowel cancer is one of the few cancers for which effective screening methods exist. Screening can identify and remove precancerous polyps, or detect cancer at an early, more treatable stage, with survival rates as high as 90%. Australia’s National Bowel Cancer Screening Program offers a free at-home stool test every two years. Originally offered to those aged 50-74, the program has expanded.
- Know the Symptoms: Bowel cancer often presents with no noticeable symptoms in its early stages, emphasizing the importance of screening. However, potential symptoms to watch for include changes in bowel habits lasting more than a few weeks, visible blood in stool, persistent abdominal pain, unexplained weight loss, and anemia.
- Prioritize a Healthy Lifestyle: Adopting a healthier lifestyle can significantly reduce your risk. This includes a diet rich in whole grains, legumes, and vegetables, while limiting processed meat consumption; regular physical activity (at least 30 minutes most days); limiting alcohol intake; and quitting smoking.
In 2022 and 2023, the Australian government revised national guidelines to recommend beginning bowel cancer screening at age 45, given the increasing rates among younger adults. As of July 2024, individuals aged 45 to 49 can request a stool kit through the National Cancer Screening Register. In the first six months of the expanded program, 77,000 eligible Australians aged 45-49 requested a kit.
If you have a family history of bowel cancer, discussing a screening colonoscopy with your doctor may be appropriate, even before age 45.
Looking Ahead
The increasing incidence of bowel cancer in younger adults underscores the need for increased awareness, earlier screening, and a continued focus on preventative lifestyle measures. Ongoing research is crucial to better understand the factors driving this trend and to develop more effective strategies for early detection and treatment. Regular check-ups with your healthcare provider and open communication about any concerning symptoms remain vital for maintaining optimal health.
Have you considered participating in bowel cancer screening? Share your thoughts and experiences in the comments below.
Disclaimer: This information is intended for general knowledge and informational purposes only, and does not constitute medical advice. It is essential to consult with a qualified healthcare professional for any health concerns or before making any decisions related to your health or treatment.
