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Gastrointestinal Function Unit

Contact Information
Gastrointestinal Function Unit (GIFU)
SGH, Block 3 Level 1 (Next to Ambulatory Endoscopy Centre - AEC)
Yellow Zone​
65 6321 4377
(for appointments only)
The Gastrointestinal Function Unit (GIFU) is a one-stop center in Singapore capable of offering specialty investigations which are integral to the management of a wide range of functional gastrointestinal disorders. 

Our dedicated team of specialist doctors, nurses and technicians aims to provide individualized and comprehensive treatment for our patients. 


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Clinical Services

The Gastrointestinal Function Unit is a collaboration by Department of Colorectal Surgery and Department of Gastroenterology and Hepatology. 

We offer advanced investigational facilities covering 3 essential body systems which are Upper Gastrointestinal, Lower Gastrointestinal / Pelvic Floor, Liver and Nutrition 

Services offered include:

Colorectal Surgery

  • High Resolution Anorectal Manometry
  • Anorectal Biofeedback
  • Pudendal Nerve Terminal Motor + Latency (PNTML) measurement
  • Colonic Transit Marker Study (TMS)
  • 3D Endoanal Ultrasound
  • 3D Endorectal Ultrasound
  • Dynamic Transperineal Ultrasound
  • Transrectal Ultrasound-guided Biopsy
  • Transanal Irrigation (TAI)
  • Percutaneous Tibial Nerve Stimulation (PTNS)
  • Sacral Nerve Stimulation (SNS)


  • Capsule Endoscopy (Pillcam)
  • High Resolution Esophageal Manometry
  • 24 pH-impedance monitoring
  • Wireless Esophageal-pH monitoring (Bravo)
  • Glucose Hydrogen Breath Test


  • Fibroscan