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Gastroscopy

A gastroscopy is a procedure where a thin, flexible tube called an endoscope is used to look inside the oesophagus (gullet), stomach and first part of the small intestine (duodenum). It’s also sometimes referred to as an upper gastrointestinal endoscopy. The endoscope has a light and a camera at one end. The camera sends images of the inside of your oesophagus, stomach and duodenum to a monitor.
Why a gastroscopy may be used
A gastroscopy can be used to:

  • investigate problemssuch as difficulty swallowing (dysphagia) or persistent abdominal (tummy) pain
  • diagnose conditionssuch as stomach ulcers or gastro-oesophageal reflux disease (GORD)
  • treat conditionssuch as bleeding ulcers, a blockage in the oesophagus, non-cancerous growths (polyps) or small cancerous tumours

A gastroscopy used to check symptoms or confirm a diagnosis is known as a diagnostic gastroscopy. A gastroscopy used to treat a condition is known as a therapeutic gastroscopy.