Rising Bowel Cancer Cases Among Young Adults Demand Urgent Attention

In recent years, a troubling trend has emerged in Australia: an increase in bowel cancer diagnoses among individuals under the age of 50. Traditionally associated with older populations, colorectal cancer is now becoming prevalent among younger adults, prompting urgent calls for greater awareness and early detection.

According to Professor Gerald Holtmann, Director of Gastroenterology and Hepatology at Princess Alexandra Hospital, young adults now represent an alarming share of new bowel cancer cases. In a statement made on June 19, 2025, he noted, "Deaths from colorectal cancer are now the most prevalent cancer-related deaths in young males and one of the top causes in females under 50." This trend is particularly concerning, as the majority of bowel cancer cases still occur in individuals aged 50 to 75, yet the rise in diagnoses among those aged 20 to 45 has raised significant alarm among health professionals.

The reasons behind this increase remain unclear, but experts are investigating potential links to lifestyle and dietary changes. Professor Holtmann speculates that the consumption of processed foods and food additives may be contributing factors that alter the gut microbiome, potentially leading to cancer development.

A colonoscopy is a crucial tool in the fight against bowel cancer; it can reduce the risk of death from the disease by up to 90%. Professor Holtmann emphasizes that colorectal cancer is no longer a disease confined to older adults, stating, "It can affect young people, and early detection makes all the difference." In Australia, individuals aged 45 to 50 are now eligible to request bowel screening tests, and anyone experiencing concerning symptoms should consult their general practitioner (GP) regardless of age.

One poignant case highlighting the importance of early screening is that of 36-year-old Kaz Kelly, who was diagnosed with stage 4 bowel cancer despite exhibiting minimal symptoms. "My GP saved my life by sending me for a colonoscopy," Kelly recounted. "If I had a different GP, they probably would have sent me away with iron tablets or told me it was my period." Her story underscores the necessity for patients to advocate for themselves within healthcare systems.

Kelly's experience is emblematic of a broader issue where young women, in particular, often feel their health concerns are dismissed. She urges others to listen to their bodies and speak up if something feels amiss. Professor Holtmann echoes this sentiment, stating, "If something doesn’t feel right, speak up. Colorectal cancer is affecting more young people than ever before. The earlier we find it, the better the outcomes."

Health professionals recommend that individuals experiencing any of the following symptoms should speak to their GP and consider requesting a bowel screening test, even if they are under 50: - Blood in the stool - Persistent changes in bowel habits (diarrhea or constipation) - Unexplained abdominal pain or bloating - Unexplained weight loss - Ongoing fatigue due to low iron levels

As the medical community continues to investigate the rising rates of bowel cancer among young adults, it is imperative for individuals to prioritize their health and seek prompt medical attention when symptoms arise. Increased awareness and proactive screening could ultimately save lives in this growing demographic.