Rising Colorectal Cancer Among Young Adults – 7 Symptoms Not to Ignore

Colorectal cancer is often seen as a condition that affects older adults. However, in recent years, doctors in Singapore have noticed a worrying trend. More young adults are being diagnosed with colorectal cancer, sometimes in their thirties or even younger.

Because the symptoms can feel mild or easy to dismiss, many people delay seeing a doctor. Unfortunately, this can lead to later diagnosis when treatment becomes more complex. By understanding the early warning signs, you can take proactive steps toward early detection, which can significantly improve your chances of successful treatment.

What Is Colorectal Cancer

Colorectal cancer starts in the colon or rectum, which are parts of the large intestine. It often develops slowly, beginning with small growths called polyps. Over time, some of these polyps can turn cancerous.

In Singapore, colorectal cancer remains one of the most common cancers diagnosed in both men and women. While age remains a major risk factor, changes in lifestyle and diet, as well as delayed screenings, contribute to a rise in cases among younger adults.

Why Young Adults Are at Risk Too

Many young adults assume they are too young to worry about colorectal cancer. As a result, early symptoms are often brushed off as stress, diet issues, or common stomach problems.

This delay in seeking medical advice is one reason why colorectal cancer in younger adults is sometimes diagnosed at a later stage, when treatment may be more complex. Being aware of the symptoms and acting early can help ensure that concerns are properly assessed by a colorectal specialist, enabling earlier diagnosis and treatment.

7 Early Symptoms You Should Never Ignore

1. Rectal Bleeding

Seeing blood in your stools or on the toilet paper is never normal. Rectal bleeding is one of the most common warning signs of colorectal cancer. While it can be caused by conditions like hemorrhoids (piles), it should always be checked by a healthcare professional, especially if it occurs more than once.

2. Persistent Diarrhea or Ongoing Constipation

Changes in bowel habit that last for more than a few weeks deserve attention. Persistent diarrhea or constipation that doesn’t improve could signal an issue in the colon or rectum and should be evaluated by a doctor.

3. A Constant Feeling That Your Bowels Are Not Empty

If you frequently feel like your bowels are not fully emptied after using the toilet, this could indicate a blockage or growth in the rectum. Though it’s often overlooked, this symptom should not be ignored.

4. Abdominal Pain or Cramping That Does Not Go Away

While occasional stomach discomfort is common, ongoing cramps, bloating, or pain without a clear cause may be a sign that something is affecting your digestive system.

5. Unexplained Weight Loss

Losing weight without changing your diet or exercise routine can be a red flag. Unexplained weight loss may indicate an underlying health issue, including colorectal cancer.

6. Ongoing Fatigue or Weakness

Feeling constantly tired despite adequate rest may be linked to internal bleeding or low iron levels, which can occur with colorectal cancer. If fatigue is persistent, it should be assessed by a healthcare provider.

7. Narrow or Unusual Stool Shape

If your stools become consistently thinner or different in shape, it may suggest a narrowing of the colon or rectum. While this symptom alone does not confirm cancer, it should be checked if it persists.

Why Early Detection Makes a Difference

When colorectal cancer is detected early, treatment is often simpler and less disruptive to daily life. Many cases begin with small growths that can develop into cancer over time. Early detection through screening allows doctors to catch these early signs before they become severe, offering more treatment options and a higher chance of successful recovery.

In addition, precancerous lesions ( i.e. polyps), are often asymptomatic and only picked up incidentally on screening colonoscopy. Removal of these polyps can successfully prevent colorectal cancer.

Paying attention to symptoms and seeking medical advice promptly can make a meaningful difference in both short-term care and long-term health.

When You Should Get Checked

While colorectal cancer is less common in younger people, youth does not provide immunity.

If you’re a young adult and experience any of the symptoms listed above for more than four weeks, it’s important not to wait. A colonoscopy may be required for further assessment.

For the general population, the Singapore Ministry of Health recommends regular colorectal cancer screening starting at age 50.

• Fecal Immunochemical Test (FIT): Recommended annually for adults aged 50 and above. This is recommended only for adults without any family history of colorectal cancer and are asymptomatic.
• Colonoscopy: Recommended once every 10 years for those at average risk. If you have a family history of colorectal cancer or other risk factors, your doctor may suggest starting screening earlier. Even if you’re a young adult, if you’re concerned about symptoms or family history, consult a colorectal surgeon for personalised guidance. They can advise you on when and how to start screening based on your individual health profile.

Start Taking Action

Colorectal cancer is one of the most common cancers in Singapore, but the good news is that early detection significantly improves the chances of successful treatment. Being young doesn’t make you immune to this disease. If you notice any unusual symptoms, trust your instincts and seek medical advice.

If you’re concerned or have been experiencing any of the symptoms mentioned, our expert colorectal surgeons at TEN Surgery are here to help. Early screening can make a big difference in your health journey. Schedule a consultation or health screening today and take charge of your well-being.

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