Colonoscopy: How Is The Preparation, Procedure, And Screening

A colonoscopy examines the bowels using a scope, a thin, flexible tube with a camera, and light. It helps identify issues, such as:

  • Colorectal cancer
  • Polyps
  • Ulcers

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What is a colonoscopy?

During the colonoscopy, the doctor checks for disease or abnormalities in the large intestine, particularly in the colon. A colonoscope is used for the colonoscopy procedure. The colon will assist to form the gastrointestinal tract’s lowest part. The colon is linked to the anus via the rectum. During the colonoscopy, the doctor removes abnormal tissue or takes tissue samples for the biopsy.Considering Colonoscopy in Singapore? Click here to learn more.

Colorectal Cancer

Why perform colonoscopy?

The screening helps the doctor to:

  1. Look for the signs of cancers and some other conditions.
  2. Explore the causes of changes in bowel habits.
  3. Evaluate symptoms of bleeding or abdominal pain.
  4. Find a reason for the unexplained chronic constipation, weight loss, or diarrhea.

Colonoscopy screening

Colonoscopy is performed by screening, for colorectal cancer and other conditions. It is recommended once every ten years for patients who meet all these criteria:

  1. 50-70 years old
  2. The average risk of colorectal cancer
  3. The life expectancy of ten years

There is a recommendation for one-time colonoscopy for people:

  1. 50-79 years old
  2. The average risk of the colorectal cancer
  3. At least a 3% chance of developing colorectal cancer within 15 years

It is recommended to begin the screening at the age of 45 years old, which doctors determine to start screenings based on the patients’ needs. If you are at an increased risk for colorectal cancer, more procedures are needed.

Patients recommended being screened often, every 1-5 years including:

  1. People with polyps removed within a previous colonoscopy
  2. Persons with colorectal cancer from the past.
  3. People with hereditary condition of colorectal cancer
  4. People with IBD (Inflammatory Bowel Disease)