Losing weight unexpectedly may seem like a positive change, but if you haven’t made any lifestyle or diet adjustments, it could be a potential symptom of colon cancer. Many Singaporeans associate sudden weight loss with stress, busy work schedules, or digestive issues, delaying medical check-ups. However, unexplained weight loss – especially if combined with fatigue, changes in bowel habits, or stomach pain—should not be ignored. In Singapore, colorectal cancer is a leading cancer among men and women, with over 2,500 new cases diagnosed annually (2018-2022, Singapore Cancer Registry).
Why Colon Cancer Causes Unexplained Weight Loss
Several mechanisms explain why colon cancer leads to unintended weight loss:
1. Tumours Disrupt Nutrient Absorption
- Colon tumours can interfere with digestion, preventing the proper absorption of nutrients, leading to unintentional weight loss.
2. Cancer Increases Metabolism
- As the body fights cancer, metabolism speeds up, burning more calories and leading to rapid weight loss.
3. Loss Of Appetite
- Many colon cancer patients experience a feeling of fullness after small meals, causing a gradual decrease in food intake.
4. Chronic Inflammation & Energy Drain
- Cancer cells trigger chronic inflammation, making the body feel constantly tired and weak.
- This leads to weight loss as the body burns energy to fight the disease.
Singapore Colon Cancer Statistics
- Over 50% of colorectal cancer cases are diagnosed at Stage 3 or 4, reducing survival rates.
- Early detection through screening can increase survival chances to over 90%.
A colonoscopy is the most effective way to determine if rectal bleeding is linked to cancer. This simple, painless procedure allows doctors to examine the colon and remove any suspicious growths before they turn cancerous.
Learn More: Colonoscopy Screening For Colon & Rectal Cancer >>
Other Symptoms That May Accompany Unexplained Weight Loss
If you experience sudden weight loss along with the following symptoms, consult a doctor immediately:
- Chronic bloating or stomach pain.
- Frequent diarrhoea or constipation.
- Blood in stool or black, tarry stools.
- Extreme fatigue, even with enough rest.
What Should You Do If You Notice Unexplained Weight Loss?
Don’t ignore it! Here’s what to do next:
- Track your weight changes – If you’ve lost more than 5% of your body weight in a few months without trying, seek medical advice.
- Consult a doctor – A gastroenterologist or colorectal surgeon can assess your symptoms and recommend screening tests.
- Get a colonoscopy – The best way to detect colon cancer early and improve treatment outcomes.
Early Detection Saves Lives
Unexplained weight loss is not always due to stress or diet—it could be a warning sign of a serious condition like colon cancer. If you’re experiencing sudden weight loss, don’t wait—get screened today.
Your health matters. Book a colonoscopy now to rule out colon cancer before it’s too late.
Protect against cancer, cardiovascular disease, and other chronic diseases with regular health screening. Compare and shop for health screenings from Singapore and regional healthcare providers at a single convenient platform - shop.health365.sg
This article is informative only and is not intended to be a substitute for professional medical advice, diagnosis, or treatment, and should never be relied upon for specific medical advice.