Health Sharing


Irritable Bowel Syndrome

"Irritable bowel syndrome" (also known as "colon irritable bowel syndrome," or generally known as "sensitive gut”) is a general term for the symptoms of intestinal disorders, or symptoms caused by oversensitivity of the intestine, patients are subject to the following conditions:


1. Abdominal pain, bloating or abdominal discomfort usually subsides after defecation.


2. When there is abdominal pain, bloating or abdominal discomfort, bowel opening frequency will increase or decrease, or stool will become hard or loose.


Most people may occasionally have the above symptoms, but if the symptoms occur frequently (up to three times a month or more) or the symptoms affect their daily lives, and the underlying reasons cannot be found by colonoscopy, then you may be suffering from "Irritable Bowel Syndrome".


Related Information:

Colon Capsule Endoscopy

Colonoscopy / Sigmoidoscopy

Genaral Enquiry

Inflammatory Bowel Disease

Inflammatory Bowel Disease included Crohn’s Disease and Ulcerative Colitis. This is an autoimmune disease in which the body's own immune system attacks elements of the digestive system. They affect males and females, with the commonest age of onset in childhood, teens and early adult life. Previously restricted almost exclusively to the West, these conditions are becoming much more common in Asian countries, including Hong Kong – the cause of this dramatic change is unknown.


Related Information:

Colon Capsule Endoscopy

Colonoscopy / Sigmoidoscopy

Colorectal cancer

What Is Rectal and Colon Cancer?

Rectal and colon cancer (also known as colorectal cancer) originates along the lining of the colon and rectum, initially as a polyp, specifically an adenoma. If not removed, adenomas can develop into colorectal cancers. By screening, adenomas can be discovered and removed, preventing progression into colorectal cancers. Thus, screening can effectively reduce the risk of developing and dying from colorectal cancer



 Self Photos / Files - crc-progress-en-2-1024x493   According to the most recent data from the Hong Kong Cancer Registry, colorectal cancer is now the most common cancer in the city, with more than 5,635 new cases diagnosed in 2017. Colorectal cancer is also the second leading cause of cancer related deaths in Hong Kong, with over 2000 deaths in 2015.


What are the risk factors for colorectal cancer?

Risk factors include:

  • Diabetes
  • Fatty liver
  • Obesity
  • Smoking history
  • Frequent alcohol intake
  • Frequent red/processed meat consumption
  • Minimal physical activity
  • Minimal fiber intake


First degree relatives with colon cancer (relatives are at 2-3x higher risk of developing colorectal cancer than the general population, and are recommended to undergo colonoscopyscreening)


What are the symptoms of rectal and colon cancer?

Colorectal cancer can be asymptomatic but symptoms can include:

  • Colorectal cancer can be asymptomatic
  • Blood in stool
  • Mucus in stool
  • Changes in bowel habits (diarrhea or constipation)
  • Abdominal pain
  • Unexplained weight loss
  • Unexplained anemia


What to do if you suspect you might have rectal or colon cancer

If you have any of the above symptoms, you are recommended to seek medical consultation. A colonoscopy may be recommended. Faecal immunochemical testing is not suitable for symptomatic patients. Even if you do not have the above symptoms, international guidelines still recommend starting screening at 50 years old, using either: 1) fecal immunochemical testing or 2colonoscopy  Earlier screening may be recommended for high-risk groups, such as people with a first degree relative with colorectal cancer. Colorectal cancer can be prevented! You can make a difference.


What are the differences between faecal occult blood testing and a colonoscopy?


 Diagnostic Ability  Visual inspection of the colorectum    Detects occult blood.  If positive (blood detected), will need   colonoscopy
 Therapeutic Capability  Can remove polyps and take biopsies  None
 Accuracy  The most accurate for polyps and cancers  Accurate for cancer
 Procedural Details  After sedation, a thin flexible tube-like device with camera and   light  functions is used to examine the colorectum, taking usually   30  minutes in duration  Stool collection at home, and return of kit to the centre
 Risks  Approximately 1/1000 chance of serious adverse events  None


Related Link:


Fecel immunochemical test

Colon Capsule endoscopy