About 1 in 3 Americans aren’t up to date with their recommended colon cancer screening. Although missing an occasional test might not seem like a big deal, in the case of colon cancer screening, it could be a deadly mistake. About 60% of colon cancer deaths today could be prevented by having screenings when recommended.
Colon Cancer Screening Q & A
Why should I have a colon cancer screening?
Colon cancer screening is essential for two reasons. First, it identifies cancer early, when it’s easiest to treat. Secondly, in some cases, screening can prevent colon cancer entirely.
My Doctor recommended a stool or blood test. Why should I consider a colonoscopy instead?
A colonoscopy is widely regarded as the gold standard for colon cancer prevention and detection by leading gastroenterology organizations, including the American College of Gastroenterology (ACG) and the American Society for Gastrointestinal Endoscopy (ASGE). Unlike stool or blood tests, which primarily detect existing signs of cancer or precancerous conditions, a colonoscopy allows for the direct visualization of the colon and rectum. This enables the physician to identify and remove precancerous polyps during the same procedure, effectively preventing cancer before it develops.
Studies have shown colonoscopy to be highly accurate, with a sensitivity exceeding 95% for detecting advanced adenomas and colorectal cancer in specialized centers (Rex et al., 2017, Gastrointestinal Endoscopy). For average-risk individuals, a normal colonoscopy means the test typically needs to be repeated only once every 10 years, as recommended by the U.S. Preventive Services Task Force (USPSTF, 2021).
By contrast, stool tests, such as the fecal immunochemical test (FIT) or multitarget stool DNA test, require annual or biennial testing and are less effective in detecting advanced adenomas (Imperiale et al., 2014, New England Journal of Medicine). Blood-based tests, while convenient, are newer and not yet validated as standalone tools for colorectal cancer prevention (Patel et al., 2020, Gastroenterology).
Additionally, colonoscopy is performed under controlled conditions, with sedation ensuring patient comfort and a skilled team ensuring safety. Discussing the benefits and limitations of all available options with your doctor is essential to make an informed decision that aligns with your health goals.
When should I start colon cancer screening?
We can make an individualized recommendation based on your risk factors. These risk factors include:
- Age over 45
- Your ethnicity
- Family history of colon cancer
- Genetic syndrome, such as Lynch syndrome
- Inflammatory bowel disease
- Overweight or obesity
- Diabetes
- Sedentary lifestyle
- Tobacco use
- Alcohol use
- High-fat diet
Because many of these factors are controllable, it’s critical to work with a gastroenterology specialists to minimize your risk. A few lifestyle changes right now could keep you from developing colon cancer in the future.
Ok, I want to schedule a colonsocopy. Where should I schedule my procedure?
The Southwest Endoscopy Center is a Medicare-certified and AAAHC-accredited ambulatory surgery center specializing in the performance of endoscopic procedures. It has been recognized by the American Society for Gastrointestinal Endoscopy for promoting quality in endoscopy.