Colon Cancer Screening

Early Detection Saves Lives

Regular colon cancer screening is crucial for early detection, prevention, and effective treatment of colorectal cancer, significantly improving survival rates.

Person wearing a white sweater with an abstract design, holding one hand to their chest

Prevention Starts with a

What is Colon Cancer Screening?

Colon cancer screening involves tests to detect cancerous or precancerous growths in the colon or rectum. The goal is early detection when treatment is most effective.

When Colon Cancer Screening Becomes Necessary

Ongoing symptoms may indicate an underlying condition. Consider seeing a gastro specialist if you're experiencing some of these symptoms

Individuals Aged 50 and Older

Blood in Stool

Individuals with a Family History of Colon Cancer

Abdominal Pain

Changes in Bowel Habits

Unexplained Weight Loss and Fatigue

However, early-stage colon cancer may not show symptoms, making regular screening essential.

How Does Colon Cancer Screening Work?

During the procedure, a flexible tube with a camera examines the colon for polyps or cancer. Polyps are removed and analyzed to ensure early detection and prevention.

What Happens During Your Procedure?

Smiling woman holding a plate of colorful vegetables and eating a green bean, symbolizing healthy eating.

01
Preparation

Follow dietary and bowel-cleansing instructions provided by your doctor.

Female patient in a surgical cap receiving anesthesia via a face mask before a medical procedure.

02
Sedation

Receive mild sedation to ensure comfort during the procedure.

Close-up of an illuminated endoscope tube inside a body cavity, representing a medical imaging procedure.

03
Colonoscopy

A flexible tube with a camera examines the colon for polyps or cancer.

Female scientist wearing a face mask, closely examining a sample through a microscope

04
Polyp Removal

Detected polyps are removed and sent for biopsy to determine if they are cancerous.

Meet Your Endoscopy & Gastrointestinal Specialists

Dr. John Hsiang

Senior Consultant Gastroenterologist

MBChB(NZ), FRACP(Australasia), MD(Doctorate), FRCP(Edinburgh), FAMS(Gastro)

Dr. John Hsiang is a seasoned gastroenterologist and hepatologist with over two decades of clinical experience. His distinguished career includes training at Otago Medical School and the Prince of Wales Hospital in Hong Kong, specializing in liver disease and gastrointestinal disorders. Dr. Hsiang is dedicated to patient education, empowering individuals with the knowledge and confidence to manage their health.

Dr John Hsiang in blue scrubs seated, smiling confidently, representing professional gastroenterology care.

Common Questions about Colon Cancer Screening

How should I prepare for a colonoscopy?

Discuss Medical History: Inform your doctor about your medical conditions and medications. Adjust or stop certain medications if needed. Adjust Your Diet: Avoid high-fiber foods two days before and switch to a clear liquid diet before the procedure. Take Necessary Medications: Inform your doctor of all medications, including over-the-counter ones. Adjust or stop certain medications as advised. Bowel Cleansing Preparation: Follow instructions to drink a special solution to flush out the colon for clear visibility. Fast Before Procedure: Fast for at least 6 hours before the procedure; clear liquids may be allowed up to 4 hours prior.
How soon will I receive the results after my colonoscopy?

Your healthcare provider will discuss the findings shortly after the procedure. In some cases, biopsies may be taken during the colonoscopy, and results from these tests may take a little longer to process. Your specialist will follow up with you in clinic to discuss further results in detail.
Is there any possible discomfort or risk during and after the colonoscopy?

While complications are rare, they may include bleeding, perforation of the colon, or adverse reactions to sedation. The risk of bleeding and perforation is usually around 0.1% (or 1 in 1000), these are usually related to the therapeutic procedure undertaken during the colonoscopy, for example, removal of polyps. Your healthcare provider will discuss the potential risks and address any concerns you may have.
Are there restrictions following a colonoscopy?

It is recommended to avoid strenuous activities and heavy lifting for at least 24 hours after the procedure. Your healthcare provider may also advise you to avoid certain medications, such as blood thinners, for a period. If biopsies were taken during the colonoscopy, your doctor may provide specific instructions on how to care for the area where they were taken.
What can I eat after the colonoscopy?

After the procedure, you may need some time to recover from the sedation. Your healthcare provider will provide guidance on when it’s safe to resume eating and drinking. Typically, it is recommended to stick to a light diet initially, and then gradually reintroduce solid foods. Avoid heavy or spicy meals that may irritate your digestive system. Foods that are easy to digest, such as soup, crackers, and toast, are usually recommended for the first meal. It is also important to drink plenty of fluids to flush out the remaining sedation medication from your system.
Do I need a second colonoscopy if my first one was normal?

The recommended frequency for a routine colonoscopy depends on individual risk factors, such as family cancer history, personal health history and the number of polyps removed during the index colonoscopy. It is best to follow the advice of your healthcare provider regarding when to schedule your next screening. In some cases, a second colonoscopy may be necessary if there are abnormal findings or persistent symptoms after your first procedure. Your doctor will discuss the need for further tests or procedures with you.