Colorectal cancer remains one of the leading causes of cancer-related deaths in Singapore. Despite its severity, early detection and intervention dramatically improve survival rates.
If you’re considering screening, colorectal screening cost in Singapore shouldn’t be a major hindrance if you’re Singaporean as screening procedures like colonoscopy are in many cases claimable. Screening serves as a critical measure to identify precancerous polyps or early-stage cancers before symptoms manifest.
On this page, we clarify who needs colorectal cancer screening. We will also share the available methods in Singapore, and important factors to consider when thinking about colorectal cancer screening in Singapore.
Who Should Get Screened?
Screening recommendations for colorectal cancer in Singapore are guided by risk factors, age, and individual health conditions. Not everyone is at the same level of risk, so the need for screening varies significantly.
For individuals in the general population, the primary factor is age. Healthcare guidelines recommend that adults with an average risk of colorectal cancer begin regular screening at 45 years old.
This is because the risk of colorectal cancer increases with age, even in the absence of symptoms. Screening every 1–2 years using methods like the Faecal Occult Blood Test (FOBT) or a colonoscopy every 10 years is the norm for average-risk adults.
However, for those classified as high-risk, screening is often recommended earlier and more frequently. A family history of colorectal cancer is a key risk factor.
Individuals with a first-degree relative (parent, sibling, or child) who has been diagnosed with colorectal cancer should discuss personalized screening schedules with their colon doctors. Early detection is particularly important in such cases because genetic predispositions often lead to a higher likelihood of developing cancer.
Another high-risk group includes individuals with chronic conditions like inflammatory bowel disease, which includes Crohn’s disease and ulcerative colitis. These conditions can cause prolonged inflammation in the colon and raise the risk of developing abnormal tissue growths.
For these patients, colonoscopies are often conducted more frequently than the general recommendation to closely monitor the colon’s health. Personal lifestyle choices also contribute to colorectal cancer risk.
Factors like smoking, high alcohol consumption, a sedentary lifestyle, and a diet low in fiber and high in processed foods increase susceptibility. While these individuals may not fall under specific screening mandates, they should consult their doctor to assess whether earlier screening is advisable.
Inherited syndromes, like Lynch syndrome or Familial Adenomatous Polyposis (FAP), also warrant specialized attention. These rare genetic conditions carry a significantly heightened risk for colorectal cancer, often necessitating screening as early as the teenage years or early adulthood.
Screening Methods for Colorectal Cancer in Singapore
Singapore offers a range of screening methods tailored to different risk levels and patient preferences. These methods vary in invasiveness, frequency, and diagnostic accuracy, but all aim to detect abnormalities in the colon and rectum.
The Faecal Occult Blood Test (FOBT) is one of the most common screening tools for colorectal cancer screening in Singapore. It involves testing stool samples for hidden blood, which could indicate the presence of polyps or cancer.
This non-invasive and affordable option is ideal for individuals at average risk. However, because it only detects blood and not the polyps themselves, a positive result typically leads to further evaluation via colonoscopy.
A colonoscopy is considered the gold standard for colorectal cancer screening. It allows a physician to thoroughly examine the entire colon using a flexible camera.
This procedure not only detects polyps but also enables their immediate removal to prevent them from developing into cancer. Although it requires bowel preparation and sedation, its comprehensive nature makes it the most definitive diagnostic tool.
For average-risk individuals, a colonoscopy is generally recommended every 10 years. A less invasive alternative to a colonoscopy is a sigmoidoscopy, which examines only the lower part of the colon.
While not as thorough as a full colonoscopy, it is a useful option for individuals seeking quicker procedures with minimal recovery time. In recent years, virtual colonoscopy has gained popularity as a non-invasive imaging technique.
Using advanced CT scans, this method produces detailed images of the colon and rectum. While it is less invasive and requires no sedation, it may miss smaller polyps and cannot remove them if detected which means that a follow-up colonoscopy may be needed.
Other screening options, like the double-contrast barium enema, are less commonly used today but remain available for specific cases. This X-ray-based technique involves filling the colon with a barium solution to highlight abnormalities.
However, newer methods have largely replaced it due to advances in imaging technology. In Singapore, accessibility and affordability are enhanced through initiatives like the Screen for Life program, which provides subsidized screenings for eligible individuals. Public healthcare facilities also offer these tests at competitive rates, ensuring broader reach.
Colorectal Cancer Symptoms to Watch For
While colorectal cancer screening primarily targets asymptomatic individuals, it does help to know the warning signs. Symptoms often develop in later stages, which explain why many cases are discovered when already advanced.
One of the most common indicators is blood in the stool. This may appear as bright red streaks or darker, tar-like stools. While not all cases of blood in the stool signify cancer—hemorrhoids or anal fissures are other potential causes—it is always worth investigating.
Rectal bleeding, even in small amounts, should raise concern. Persistent bleeding often points to abnormalities in the rectum or lower colon.
Similarly, changes in bowel habits can signal underlying issues. These include chronic constipation, diarrhea, or alternating patterns between the two, especially if these changes last for more than a few weeks without clear cause.
Another red flag is unexplained weight loss, often accompanied by a lack of appetite. Sudden drops in weight without changes in diet or exercise could indicate that the body is fighting an illness.
Abdominal pain, particularly if persistent or severe, warrants medical assessment. This pain might be localized or radiate across the abdomen, and its intensity can vary depending on the underlying condition.
In some cases, colorectal cancer causes a feeling of incomplete bowel evacuation, known as tenesmus. This sensation can occur even when the bowel is empty and may result from a tumor obstructing normal stool passage.
Takeaway
Colorectal cancer screening is a vital health measure, especially for individuals at risk or over 50 years of age. With various screening methods and national programs promoting affordability, Singaporeans have ample resources to take charge of their health.
Regular screenings, combined with symptom awareness, offer the best defense against colorectal cancer. Consult your doctor today to determine the right screening plan for you. Book an appointment with a colorectal doctor below;
Alpine Surgical Practice – Dr Aaron Poh | Colonoscopy | Gallstones Removal Singapore
3 Mount Elizabeth, #14-06 Medical Centre,
Singapore 228510
+65 6322 7323