Dr. Rami Hamed Medical Blog

What Can a Gastroscopy Detect?

Written by DRHC Medical Editorial Team | August 03, 2026

If you have been experiencing persistent heartburn, stomach pain, difficulty swallowing, unexplained nausea, or vomiting, your doctor may recommend a gastroscopy. Many patients in Dubai worry about what the test involves and whether it is truly necessary. The good news is that gastroscopy is a safe, minimally invasive procedure that can accurately diagnose many conditions affecting the upper digestive system and, in some cases, provide treatment during the same procedure.

At Dr. Rami Hamed Center (DRHC) Dubai Gastroenterology Clinic, experienced gastroenterologists perform advanced endoscopy procedures to help patients receive an accurate diagnosis and personalized treatment plan without unnecessary delays.

What Is a Gastroscopy?

Gastroscopy, also called an upper gastrointestinal endoscopy, is a procedure that uses a thin, flexible camera to examine the:

  • Oesophagus (food pipe)
  • Stomach
  • First part of the small intestine (duodenum)

It allows your gastroenterologist to see the lining of your digestive tract in real time, take biopsies when needed, and sometimes perform treatment during the same examination.

What Conditions Can a Gastroscopy Detect?

1. Acid Reflux (GERD)

Many people in Dubai experience frequent heartburn due to busy lifestyles, irregular meal timings, spicy foods, obesity, or stress. A gastroscopy can identify complications of GERD (Gastroesophageal Reflux Disease), including:

  • Inflammation of the oesophagus (oesophagitis)
  • Ulcers
  • Narrowing (strictures)
  • Barrett's oesophagus

For patients with chronic reflux symptoms, further investigations such as Wireless pH Monitoring or advanced treatments like Stretta Treatment may also be recommended when appropriate.

2. Stomach Ulcers and Duodenal Ulcers

Gastroscopy is the most accurate way to diagnose gastric ulcers, duodenal ulcers, and peptic ulcer disease. These ulcers may develop because of:

During the procedure, tissue samples can be taken to check for H. pylori infection, allowing targeted treatment.

3. Gastritis

Persistent upper abdominal discomfort, bloating, nausea, or indigestion may be caused by inflammation of the stomach lining (gastritis). Gastroscopy helps determine the severity of inflammation and identify its underlying cause.

4. Difficulty Swallowing

If food feels stuck while swallowing, gastroscopy can identify:

  • Oesophageal strictures
  • Inflammation
  • Ulcers
  • Tumours
  • Structural abnormalities

Depending on the findings, additional investigations such as Oesophageal Manometry or treatment with endoscopic dilatation may be recommended.

5. Upper Gastrointestinal Bleeding

If you experience vomiting blood, black stools, or unexplained iron-deficiency anaemia, gastroscopy can quickly identify the source of bleeding. In many cases, treatment can be performed immediately during the same procedure to stop active bleeding.

6. Barrett's Oesophagus

Patients with long-standing acid reflux may develop Barrett's oesophagus, a condition in which the lining of the lower oesophagus changes due to repeated acid exposure. Gastroscopy allows early detection and biopsy of these changes, helping reduce the risk of future complications through regular monitoring.

7. Stomach and Oesophageal Cancer

Although most digestive symptoms are not caused by cancer, persistent warning signs should never be ignored. Gastroscopy plays an important role in the early detection of cancers affecting the oesophagus and stomach, particularly when symptoms include:

  • Difficulty swallowing
  • Unexplained weight loss
  • Persistent vomiting
  • Vomiting blood
  • Persistent stomach pain
  • Iron-deficiency anaemia

Early diagnosis often provides more treatment options and better outcomes.

Can Gastroscopy Detect More Than Just the Stomach?

Yes. Besides examining the stomach, gastroscopy evaluates the entire upper digestive tract, including the oesophagus and the first part of the small intestine. If further assessment of the pancreas or surrounding organs is required, your gastroenterologist may recommend an Endoscopic Ultrasound (EUS).

Can Treatment Be Performed During Gastroscopy?

In many cases, gastroscopy is not only diagnostic but also therapeutic. Depending on the findings, your gastroenterologist may:

  • Take tissue biopsies
  • Control bleeding
  • Remove certain abnormal growths
  • Dilate narrowed areas of the oesophagus
  • Remove selected foreign bodies

This often avoids the need for additional procedures.

When Should You Consider a Gastroscopy?

Your doctor may recommend gastroscopy if you have:

  • Persistent acid reflux despite medication
  • Difficulty swallowing
  • Ongoing upper abdominal pain
  • Frequent nausea or vomiting
  • Vomiting blood or passing black stools
  • Unexplained iron-deficiency anaemia
  • Unexplained weight loss
  • Long-standing indigestion that does not improve

Expert Gastroscopy Services at DRHC Dubai

At Dr. Rami Hamed Center (DRHC) Dubai, patients benefit from a comprehensive digestive health assessment using advanced endoscopic technology. Most procedures are performed as same-day procedures with sedation, allowing patients to return home a few hours after recovery.

Our gastroenterology team also offers advanced diagnostic and therapeutic services, including colonoscopy, capsule endoscopy, ERCP, and other specialized procedures when indicated.

Conclusion

Persistent digestive symptoms should never be ignored. Whether you are experiencing chronic acid reflux, stomach pain, difficulty swallowing, unexplained anaemia, or upper gastrointestinal bleeding, a gastroscopy can provide valuable answers and guide the most appropriate treatment.

If you are concerned about ongoing digestive symptoms, the specialists at DRHC Dubai Gastroenterology Clinic offer comprehensive consultations, advanced endoscopy services, and personalized treatment plans to help you achieve better digestive health.

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