- Screening is for people without symptoms; symptoms need medical assessment.
- Blood in stool, persistent bowel-habit change or unexplained anaemia should not be dismissed as “heatiness” or piles without review.
- Family history and previous polyps can change the recommended screening plan.
Why this deserves attention
Colorectal cancer can develop slowly from polyps and may cause no symptoms in its early stages. That is why screening matters. The Faecal Immunochemical Test (FIT) looks for small amounts of blood in stool that may not be visible. A positive FIT does not mean someone definitely has cancer, but it requires proper follow-up.
What makes it more important
Other warning changes include persistent abdominal discomfort, unexplained weight loss and feeling that the bowel does not empty normally. These symptoms are common and often have non-cancer causes, but persistence is the reason to investigate rather than guess.
What to do next
Eligible people in Singapore can access colorectal cancer screening through Healthier SG Screening. If you already have symptoms such as visible blood in stool, do not use a normal previous FIT result as reassurance — see a doctor.
Where TCM may fit
TCM may help some people discuss bowel habits, diet or comfort, but it cannot determine whether bleeding comes from cancer, polyps, inflammatory bowel disease or haemorrhoids. Medical evaluation should come first when red flags are present.
When not to wait
Seek prompt care for significant ongoing rectal bleeding, black tarry stools, fainting, severe abdominal pain, persistent vomiting or marked weakness.
Related reading and Singapore resources
This page provides general health education, not an individual diagnosis or emergency plan. Sudden, severe, persistent or rapidly worsening symptoms — especially red flags — require appropriate conventional medical assessment.