What is colorectal cancer?
Colorectal cancer is cancer that starts in the colon or rectum.
Health / Cancer
The recent news of Catherine O'Hara's passing, with rectal cancer listed as an underlying cause, has sparked increased awareness and conversation about colorectal cancer. This article aims to provide information about the disease, its preva...
### Background
Catherine O'Hara, the Emmy-winning actress, passed away at the age of 71. A Los Angeles County death certificate listed a pulmonary embolism as the immediate cause of death, with rectal cancer as an underlying cause. This has led to increased awareness of colorectal cancer and the importance of early detection.
### Colorectal Cancer Statistics
Colorectal Cancer Canada reports that colorectal cancer is the fourth most frequently diagnosed cancer in Canada. While most cases occur in adults 50 or older, there has been a rise in incidence among younger adults since the early 2000s. BC Cancer states that in 2026, an estimated 3,515 people in B.C. will be newly diagnosed with colorectal cancer. The federal government estimates that one in 14 men and one in 18 women will be diagnosed with colorectal cancer in their lifetime.
### Detection and Screening
Health Canada reports that 47 per cent of colorectal cancer cases are diagnosed early in their development, at Stage 1 and 2. The Canadian Cancer Society notes that in its early stages, colorectal cancer may not cause any signs or symptoms. However, as a tumour grows, symptoms can include bleeding from the rectum, fatigue and weakness, weight loss, or breathing problems.
BC Cancer recommends talking to a health-care provider if you experience any of these symptoms. Health Canada recommends screening for colorectal cancer for average-risk adults aged 50 to 74 years.
Dr. Ted McAlister recommends a fecal immunochemical test every two years to test stool for hidden blood. If the test is positive, a colonoscopy is performed to check for abnormalities. Early colorectal cancer is usually treated with surgery and is often cured. More advanced cases may require chemotherapy and radiation therapy.
### Who is at Increased Risk?
Colorectal Cancer Canada says you may be at a higher risk of developing colorectal cancer if you have:
### Actionable Takeaways
Colorectal cancer is cancer that starts in the colon or rectum.
Symptoms can include blood in the stool, abdominal pain, changes in bowel habits, and unexplained weight loss.
Colorectal cancer can be detected through screening tests such as fecal immunochemical tests and colonoscopies.
People with a family history of colorectal cancer, inflammatory bowel disease, or certain inherited cancer syndromes are at higher risk.
Do you think increased awareness will lead to earlier detection and better outcomes for colorectal cancer? Share your thoughts in the comments below!
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