When it comes to diagnosing digestive tract issues, endoscopy and gastroscopy are two commonly used procedures. However, many people find these terms confusing and often wonder, “Is gastroscopy the same as endoscopy?” or “Which procedure do I need?”
While both procedures involve inserting a flexible tube with a camera into the body to examine internal structures, they are not exactly the same. In this blog, we will explore the differences between gastroscopy and endoscopy, their uses, benefits, risks, and recovery process.
By the end, you’ll have a clear understanding of which procedure might be recommended for different digestive health concerns.
What is an Endoscopy?
Endoscopy is a general term for a minimally invasive diagnostic procedure that uses a thin, flexible tube with a camera (called an endoscope) to examine internal organs.
Types of Endoscopy
Endoscopy can be used to examine various parts of the body. Some common types include:
- Gastroscopy (Upper Endoscopy or Esophagogastroduodenoscopy – EGD)
- Examines the esophagus, stomach, and duodenum (upper part of the small intestine).
- Used to diagnose ulcers, acid reflux, H. pylori infections, and stomach cancer.
- Colonoscopy
- Examines the large intestine (colon and rectum).
- Used to check for polyps, colorectal cancer, and inflammatory bowel disease (IBD).
- Bronchoscopy
- Examines the lungs and airways.
- Helps diagnose lung diseases, chronic cough, and infections.
- Sigmoidoscopy
- Similar to colonoscopy but focuses only on the lower part of the colon (sigmoid colon).
- Cystoscopy
- Examines the bladder and urinary tract.
- Used to diagnose urinary infections, bladder stones, and cancer.
- Hysteroscopy
- Examines the uterus.
- Used in diagnosing abnormal bleeding, fibroids, and fertility issues.
How is Endoscopy Performed?
✅ The doctor inserts an endoscope through the mouth, nose, or rectum, depending on the organ being examined.
✅ The camera transmits real-time images to a screen.
✅ If needed, small instruments are inserted through the tube to take tissue samples (biopsy) or treat minor conditions.
What is a Gastroscopy?
A gastroscopy, also known as an upper gastrointestinal (GI) endoscopy, is a type of endoscopy that specifically examines the esophagus, stomach, and upper part of the small intestine (duodenum).
Why is Gastroscopy Done?
A gastroscopy is recommended for patients experiencing:
🔹 Acid reflux (GERD)
🔹 Unexplained stomach pain
🔹 Nausea and vomiting
🔹 Difficulty swallowing (dysphagia)
🔹 Suspected ulcers or infections
🔹 Gastrointestinal bleeding
How is Gastroscopy Performed?
✅ The patient is given a mild sedative or local anesthetic spray to numb the throat.
✅ A thin, flexible tube (gastroscope) is inserted through the mouth and passed down to the stomach.
✅ The camera sends real-time images to a monitor, allowing the doctor to examine the upper GI tract.
✅ Biopsies or treatments, such as removing polyps or stopping bleeding, may be done.
✅ The procedure takes about 10-20 minutes.
Key Differences Between Gastroscopy and Endoscopy
| Feature | Gastroscopy | Endoscopy |
| Definition | A specific type of endoscopy that examines the esophagus, stomach, and duodenum. | A broad term for procedures that examine different internal organs. |
| Focus Area | Upper digestive tract (esophagus, stomach, duodenum). | Various body parts, including the digestive, respiratory, and urinary systems. |
| Method | Involves inserting a gastroscope through the mouth. | Can be performed via mouth, nose, rectum, or other openings. |
| Uses | Diagnoses ulcers, acid reflux, infections, and stomach cancer. | Diagnoses conditions in different organs like the colon, lungs, or bladder. |
| Procedure Time | 10-20 minutes. | Varies (depends on type, e.g., colonoscopy may take 30-60 minutes). |
| Sedation | Local anesthesia or mild sedation. | May require deeper sedation for some types. |
Which Procedure Do You Need?
If you are experiencing stomach pain, acid reflux, difficulty swallowing, or upper GI symptoms, your doctor may recommend a gastroscopy.
If you have digestive issues in the lower intestines, lung problems, or urinary concerns, a different type of endoscopy (such as a colonoscopy or bronchoscopy) may be needed.
Always consult your doctor to determine the most suitable diagnostic test based on your symptoms.
Benefits of Gastroscopy & Endoscopy
✔ Minimally invasive (no large incisions)
✔ Quick procedure & recovery
✔ Accurate diagnosis of digestive, respiratory, and urinary issues
✔ Allows biopsies & minor treatments without surgery
✔ Detects cancer and infections early
Risks & Side Effects
Both procedures are safe, but minor side effects may occur:
🔹 Sore throat (after gastroscopy)
🔹 Mild bloating or gas
🔹 Drowsiness from sedation
🔹 Rare complications (bleeding, infection, or perforation)
Most symptoms go away within 24 hours, but if you experience severe pain, fever, or persistent bleeding, seek medical attention immediately.
Preparation for Gastroscopy & Endoscopy
✔ Fasting: No food or drink for 6-8 hours before the procedure.
✔ Medications: Inform your doctor about blood thinners or diabetes medications.
✔ Arrange Transport: If sedation is used, you cannot drive after the procedure.
Post-Procedure Recovery
✅ Rest for a few hours until sedation wears off.
✅ Avoid heavy meals for the rest of the day.
✅ Drink warm fluids to soothe the throat (for gastroscopy).
✅ Follow up with your doctor for biopsy results.
Both gastroscopy and endoscopy play vital roles in diagnosing digestive and internal health issues. While gastroscopy is a specific type of endoscopy, endoscopy itself is a broader term covering different procedures.
If you have persistent digestive discomfort, acid reflux, or swallowing problems, a gastroscopy may be necessary. However, for colon, lung, or bladder concerns, a different type of endoscopy may be recommended.
Always consult a gastroenterologist or specialist for the best diagnosis and treatment plan.
FAQs
1. Is gastroscopy painful?
Gastroscopy is not painful, but you may feel mild discomfort or gagging. A numbing spray and mild sedation help reduce discomfort.
2. Can I eat after gastroscopy or endoscopy?
You should wait a few hours before eating. Start with soft, mild foods to avoid irritation.
3. How long does an endoscopy take?
Most gastroscopies take 10-20 minutes, while other types of endoscopy (like colonoscopy) may take 30-60 minutes.