The Meme That Started It All
On social media, a meme was making the rounds about colonoscopy—or more precisely, about the bowel preparation stage that precedes it. And rightly so. The bowel prep phase, which involves drinking a laxative solution or taking tablets to flush the colon clean of stool and food particles, is widely considered the most unpleasant part of the entire process. Yet it is essential. A clean bowel enables the doctor to identify and remove polyps that could otherwise develop into cancer.

When Should You Consider a Colonoscopy?
It is advisable to discuss colonoscopy with your doctor if:
- You are over 45 years of age.
- You are over 40 with a family history of colon cancer or colon polyps.
- You have noticed a change in bowel movements, bleeding, or pain—regardless of your age.

While cancer screening is the primary reason for colonoscopy, the procedure can also detect other issues such as ulcerations, inflammation, diverticula (pouches) along the colon wall, strictures (narrowed areas), unexplained chronic diarrhea, or bleeding in the gastrointestinal tract.
The Canadian Context
In Canada, routine colorectal cancer screening using the Fecal Immunochemical Test (FIT) is recommended for average-risk adults aged 50 to 74. While FIT is the non-invasive standard screening tool, colonoscopy is typically recommended for those at high risk—such as individuals with a family history—or if a FIT test result requires follow-up. Our family doctor has been prescribing my annual FIT since I turned 50.
In 2022, my FIT revealed traces of blood in my stool, leading to my first colonoscopy. Five polyps were removed from my colon. Colon polyps are common, usually benign growths on the inner lining of the colon or rectum, affecting approximately four in ten people. Mine were benign. Polyps are of many types. Not all polyps run the risk of transforming into a cancer. Only neoplastic polyps (essentially non-malignant tumours) runs this risk. Not all polyps become malignant. Only 5 to 10 percent do and that too, over a long time, usually 10 years or more. But removal of neoplastic polyps are always recommended, to overcome the potential risk. More the number of polyps greater the risk. In2025, I underwent a repeat colonoscopy, resulting in the removal of three more polyps. My next scheduled colonoscopy is in 2028.
Polyps can also be detected by ultrasound scan although this is not the standard screening tool, it is a non-invasive option which risks non detection of small polyps. Hydro colonic Ultrasound and 3D ultrasound which simulates a colonoscopy view are specialised non-invasive procedures.
Incidence of colorectal cancer has become fairly high globally and particularly in North America. Studies have found a very high correlation between red meat consumption and the incidence of colorectal cancer. If you simply compare the global heat maps of red meat consumption and incidence of colorectal cancer, it shows a striking similarity. The correlation is even higher in the case of processed meat and this type of cancer. The International Agency for Cancer Research (IARC), which is the specialized cancer agency of the WHO, classified processed meat (bacon, sausage, hot dogs, ham, deli meats, and pepperoni) as a Group 1 “carcinogenic to humans” agent in October 2015. This classification was based on sufficient evidence that consumption causes colorectal cancer. .On the other hand it is to be noted that consumption of white meat does not bear any direct correlation with incidence of this type of cancer. Other risk factors are smoking and alcohol.
Preventing colorectal cancer involves regular screening (beginning at age 45) to remove precancerous polyps, maintaining a healthy weight, exercising regularly, eating a diet high in fiber, fruits, and vegetables, and limiting red/processed meats. Key lifestyle changes include quitting tobacco, limiting alcohol, and ensuring adequate calcium/vitamin D intake.
Addressing the Fears
Common fears surrounding colonoscopy centre on the preparation process, potential pain, embarrassment, and the anxiety of what might be found. Yet the procedure itself is safe, routine, and remarkably effective in preventing colorectal cancer. It typically takes 20 to 30 minutes, involves light sedation that keeps you comfortable, and is performed by professionals in a private setting. Finding polyps is not a negative outcome—it is an opportunity to remove them before they can become cancerous.
My only logistical challenge was the requirement to be dropped off at the hospital and picked up an hour later. Hospitals do not permit patients to drive for six hours following the procedure—a precaution against the lingering effects of light anaesthesia. I enlisted the help of a family friend, a small inconvenience for such an important health measure.
A Window into the Procedure

During the procedure, I observed the doctor’s actions with fascination. A long, thin, flexible tube—roughly half an inch in diameter—equipped with a light source and a high-definition video camera at its tip was carefully inserted. The doctor manipulated the tip to navigate the curves of the colon. The tube contained channels for air or carbon dioxide inflation to improve visibility, a water spray to clean the lens, suction to remove debris, and tools such as snares or forceps for biopsies and polyp removal.
The camera transmitted high-definition, live video to a monitor, allowing the physician to examine the colon in real time. I watched alongside him. Using wire snares passed through the colonoscope, he deftly cut off the polyps, each one immediately suctioned out.
“You appear to be a master at video games,” I remarked. “You must be outsmarting your kids!”
“I have to be,” he replied with a smile. “This is my everyday job.”
The Bottom Line
If you are on the fence about whether to undergo colonoscopy, have a conversation with your doctor, family, peers, and friends. Sharing experiences and information can alleviate fears and help you make an informed decision. Remember: the best colon cancer screening is the one that gets done.


















































