Common Symptoms That May Require a Colonoscopy in Singapore

Digestive health issues are often easy to dismiss. While occasional bloating or minor changes in bowel habits may seem harmless, they can sometimes signal an underlying condition that requires medical attention.

A colonoscopy is a crucial procedure for examining the colon and rectum, helping to identify conditions such as colorectal polyps, inflammatory bowel disease, and colorectal cancer. In this article, we highlight the common signs that may suggest the need for a colonoscopy and explain how the procedure can help you take proactive steps to safeguard your digestive health.

What Do Colonoscopy Results Show?

Colonoscopy results offer a comprehensive overview of what the specialist observed inside your colon and rectum during the procedure. By using a flexible tube equipped with a camera, the doctor can examine the bowel lining directly and assess its overall health.

Common findings may include:

• Normal Results

  : The colon and rectum appear healthy, with no growths, bleeding or other abnormalities detected.

• Abnormalities

  : Conditions such as polyps, diverticula, haemorrhoids or inflammation may be identified. Many of these findings are benign but may require monitoring, treatment or removal to prevent complications.

• Potential Signs of Colorectal Cancer

  : Suspicious growths or lesions may be detected. In such cases, the doctor will usually take a biopsy for further laboratory testing to confirm whether the changes are cancerous or precancerous.

When Should You Consider a Colonoscopy in Singapore?

In Singapore, colonoscopy is generally advised for individuals aged 50 and above as part of routine colorectal cancer screening. However, you may need to undergo the procedure earlier if you experience symptoms that could indicate colorectal issues.

Symptoms That May Require a Colonoscopy

Recognising warning signs early and seeking advice from a colorectal specialist ensures that any underlying issues are detected and managed before complications develop.

• Persistent Changes in Bowel Habits

  : Frequent diarrhoea, constipation or alternating patterns that last for several weeks may suggest abnormalities in the colon. A colonoscopy helps investigate these changes and identify their cause.

• Rectal Bleeding or Blood in the Stool

  : Blood in stool may appear bright red, maroon or black and tar-like. While piles (haemorrhoids) are a common cause, persistent bleeding should not be ignored. Colonoscopy provides direct visualisation of the colon to pinpoint the exact source of bleeding.

• Unexplained Weight Loss, Fatigue or Anaemia

  : Sudden weight loss, persistent tiredness or iron-deficiency anaemia may sometimes be linked to hidden bleeding in the digestive tract. If these symptoms occur together, a colonoscopy may be recommended to rule out serious conditions.

• Persistent Abdominal Pain, Bloating or Cramping

  : Abdominal pain that does not resolve or recurs frequently may indicate problems within the colon. Colonoscopy allows a closer examination to determine whether the cause is related to colorectal disease.

• Incomplete Bowel Emptying

  : A constant sensation of incomplete evacuation after a bowel movement may point to a structural or functional issue in the rectum or colon. Colonoscopy can help clarify the underlying reason for this symptom.

Singapore Colon Surgeon

Dr Ho Kok Sun is a consultant colorectal & general surgeon in Singapore. He graduated from the National University of Singapore in 1993, obtained his Master of Medicine in Surgery in 1998 and became a Fellow of the Royal College of Surgeons of Edinburgh the same year. After completing specialist training in General Surgery in 2002, he pursued a fellowship at the Cleveland Clinic Florida and has since subspecialised in colorectal surgery. His areas of clinical interest include laparoscopic colorectal surgery, therapeutic endoscopy such as colonoscopy, and the management of anal conditions.

Book a consultation today to discuss your symptoms and learn more about colonoscopy in Singapore.