A Patient’s Story
Liam, a 52-year-old consultant, was referred for an investigation due to ongoing heartburn and difficulty swallowing. His GP told him he needed an endoscopy, but the hospital letter mentioned a gastroscopy. Concerned, he wondered whether these were two different tests or whether something had changed.
This confusion is extremely common. The distinction between gastroscopy vs endoscopy is mainly one of terminology, not risk or severity.
Gastroscopy vs Endoscopy: What Does Each Term Mean?
Endoscopy is a general medical term used to describe a procedure that looks inside the body using an endoscope, a thin flexible tube with a camera and light.
Endoscopy can be used to examine many parts of the body, including:
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The digestive tract
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The respiratory system
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The bladder
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Joints and other internal structures
In short, endoscopy describes the technique, not the specific organ.
What Is a Gastroscopy?
A gastroscopy is a specific type of endoscopy that examines the upper digestive system.
During a gastroscopy, the endoscope is passed through the mouth to inspect:
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The oesophagus
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The stomach
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The duodenum
Gastroscopy is also referred to as:
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Upper endoscopy
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OGD
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EGD (oesophago-gastro-duodenoscopy)
Gastroscopy vs Endoscopy: The Key Difference Explained
The difference between gastroscopy vs endoscopy is straightforward:
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Endoscopy is the umbrella term
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Gastroscopy is one specific type of endoscopy
This means:
All gastroscopies are endoscopies, but not all endoscopies are gastroscopies.
Why Might You Be Referred for a Gastroscopy?
A gastroscopy is commonly recommended to investigate:
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Heartburn and acid reflux
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Difficulty swallowing (dysphagia)
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Upper abdominal pain
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Persistent nausea or vomiting
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Unexplained anaemia or bleeding
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Suspected inflammation, ulcers, or Barrett’s oesophagus
It also allows biopsies to be taken safely during the same procedure.
What Can a Gastroscopy Diagnose?
Gastroscopy can identify:
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GORD and reflux-related inflammation
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Barrett’s oesophagus
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Gastritis and peptic ulcers
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Narrowing or structural problems of the oesophagus
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Early signs of more serious conditions
Because it offers direct visual assessment, gastroscopy remains one of the most accurate investigations for upper gastrointestinal symptoms.
What to Expect From a Gastroscopy Procedure
Gastroscopy is usually a day-case procedure and typically takes only a few minutes. A throat spray or sedation may be used to improve comfort. Most patients return home the same day.
At LSDC Healthcare, gastroscopies are performed with a focus on clarity, comfort, and consultant-led care.
When Should You See a Specialist?
If you have persistent upper digestive symptoms or have been advised to undergo testing and are unsure about gastroscopy vs endoscopy, a specialist consultation ensures the right investigation is chosen.
Need a Gastroscopy or Unsure Which Test You Need?
Get clear advice and expert care at LSDC Healthcare.