Understanding Right-Sided Colon Cancer: The Silent Threat and Its Warning Signs

Colon cancer is a significant health concern, with the World Health Organization (WHO) identifying it as the third most prevalent cancer globally, accounting for nearly 10% of all cases.

While left-sided colon cancer is more commonly discussed, right-sided colon cancer poses a silent danger due to its subtle and non-specific symptoms, making it challenging to diagnose early.

Dr. Anil Thakwani, a senior consultant in Radiation Oncology, highlights the alarming nature of right-sided colon cancer, explaining that its larger space allows tumors to grow without causing immediate symptoms. This often leads to a late diagnosis.

Why is Right-Sided Colon Cancer a Concern?

Right-sided colon cancer develops in the ascending colon, and its symptoms often remain mild until the disease has advanced, making it easily overlooked compared to its left-sided counterpart. Early identification is crucial for effective treatment.

Five Warning Signs of Right-Sided Colon Cancer

Dr. Thakwani emphasizes the importance of recognizing these critical signs:

1. Unexplained Bleeding

• Why it occurs: Tumors may bleed slowly into the bowel.
• What to notice: This can lead to anemia, presenting as fatigue and weakness.
• Action: Consult a physician for unexplained anemia or persistent fatigue.

2. Persistent Bloating or Abdominal Pain

• Why it occurs: Tumors can disrupt normal bowel function.
• What to notice: Feelings of fullness or bloating that last.
• Action: Seek medical advice if bloating persists alongside other symptoms.

3. Unintentional Weight Loss

• Why it occurs: Tumors can decrease appetite and increase energy needs.
• What to notice: Significant weight loss (4-5 kg) without trying.
• Action: Report unexplained weight loss to a doctor promptly.

4. Changes in Bowel Habits

• Why it occurs: Tumors can interfere with normal bowel functions.
• What to notice: Symptoms may include diarrhea or a feeling of incomplete bowel emptying.
• Action: Monitor any changes lasting more than 2-3 weeks.

5. Constant Fatigue

• Why it occurs: Often linked to anemia from hidden bleeding.
• What to notice: Persistent fatigue that does not improve.
• Action: Do not ignore enduring fatigue; consult a healthcare professional.

Dr. Thakwani concludes that early diagnosis is vital for survival. Routine screenings are recommended for individuals over 45 or those with a family history of colon cancer.