Colorectal cancer screening checks adults without symptoms for early signs of bowel cancer and for polyps, some of which can turn into cancer. For many people at average risk, it starts at 50 with a faecal immunochemical test (FIT), a stool test done at home that looks for hidden blood. A positive FIT is not a cancer diagnosis, but it needs a colonoscopy to find the source.
Colonoscopy looks directly at the lining of the colon and rectum, and selected polyps can be removed or sampled during the same procedure. It is the next step after a positive FIT, and may be advised instead of FIT if you have a strong family history, previous polyps or colorectal cancer, or inflammatory bowel disease. Symptoms such as bleeding or a lasting change in bowel habit need a doctor's assessment rather than screening.
At Fusion Medical, most of our health screening packages include a stool test for hidden blood, and our doctors advise whether a FIT or a colonoscopy suits you. Eligible residents can also have a subsidised FIT kit here under Healthier SG Screening. Singapore Citizens and Permanent Residents aged 50 and above can use MediSave for a screening colonoscopy, within CPF MediSave limits.