Gastroenterology (Stomach & Digestive System) - Related Conditions

Gastrointestinal (GI) conditions may affect your digestive tract, as well as organs such as your liver, pancreas and gall bladder.

Upper gastrointestinal tract

The upper GI tract consists of the mouth, oesophagus, stomach and the first part of the small intestine. It digests your food and prepares it for processing in the lower GI tract. Common conditions affecting the upper GI tract include:

Lower gastrointestinal tract

The lower GI tract begins at the midsection of the small intestine and extends throughout the large intestine until the anus. It is involved in the digestion and absorption of food nutrients, as well as the processing of waste products for excretion. Conditions associated with the lower GI tract include:

Liver, pancreas, gall bladder and bile duct

The liver, pancreas, bile duct and gall bladder perform important functions such as filtering harmful substances, aiding digestion, producing proteins and enzymes, and assisting the immune system.

Many liver, gall bladder, pancreas and bile duct diseases only display symptoms at advanced stages. Left untreated, these diseases can lead to serious damage and even death. Common diseases that affect these organs include:


  • Liver cyst
  • Liver nodule
  • Liver cancer
  • Liver fibrosis
  • Liver cirrhosis
  • Fatty liver disease
  • Autoimmune hepatitis
  • Viral hepatitis (A, B, C, E)
  • Primary biliary cholangitis
  • Primary sclerosing cholangitis


Gallbladder and bile duct

  • Gallstones
  • Gallbladder and bile duct cancer
  • Primary sclerosing cholangitis

*This is not a complete list of all the conditions we recognise and treat. The information is designed for educational reference only and should not be seen as medical advice.

Please consult one of our qualified healthcare specialists for an accurate diagnosis before starting any treatment.

This page has been reviewed by our medical content reviewers.

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