Day Procedure Centre Licence
EC Specialists Premium (PHF No. DP000104) 、EC Specialists Central (PHF No. DP000110)

Day Procedure Centre Licence
醫思專匯(PHF No. DP000104)
醫思聯匯(PHF No. DP000110)

A faecal occult blood test

A faecal occult blood test

Risk of Fecal occult blood (FOB)

The early symptoms of colorectal cancer include tumours or polyps in the colon and usually associates with blood in the stool. Therefore, a Faecal Occult Blood Test (FOBT) can be conducted to see if there is any blood in the stool by collecting stool specimens in tubes and sending them to the laboratory. The test is a preliminary method to screen for colorectal cancer and it is a non-invasive test that is safer and more convenient. Colorectal Cancer Screening Programme launched by the Department of Health utilises the FOBT to find people who are at risk of having colorectal cancer and provide a colonoscopy for those who have blood in the stool. Contact us for more information about the Colorectal Cancer Screening Programme and the Faecal Occult Blood Test.

It is common to have gastrointestinal (GI) infections but it is important to pay more attention to the form and colour of the stool. If the stool is dark brown or black in colour or with flesh blood, it is recommended to receive further examinations as soon as possible. However, the blood in stool is just a symptom of colorectal cancer. It can be due to a number of other conditions, such as colon polyps, anal fissure, piles, ulcer in the lower GI tract etc. It is recommended to seek medical assistance and conduct tests to investigate the cause of the bleeding.

大便隱血成因

Blood in the stool can appear without any visible colour change or without any fresh blood in the stool. When the polyps in the intestinal wall bleed, the stool may contain hidden blood in the faeces (occult blood). Patients who have doubts can conduct a FOBT or a colonoscopy in accordance with the medical advice.

A faecal occult blood test

Procedure to collect specimens for the FOBT

Precautions of FOBT

It is recommended to prepare a holder, such as a plastic bag, for collecting the stool in the toilet bowl, to avoid the specimens from contacting with urine or toilet water and interrupt the test results. Returned the specimen to a specimen collection point within 4 days of collection. As the FOBT is to see if there is blood in the stool, it is also recommended to avoid collecting specimens on the day when the pile bleeds to avoid contamination of the sample.

FOBT Result

大便隱血

FAQ for FOBT

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