Gastroscopy
Gastroscopy examines the esophagus, stomach and duodenum
For ongoing heartburn, stomach pain, nausea, difficulty swallowing or an abnormal barium screening result. We explain what to prepare before your visit.
Overview
What the examination looks for
The examination helps the doctor look for inflammation, ulcers, bleeding, polyps and other changes in the upper digestive tract. Your symptoms, examination findings and any additional tests are considered together before a diagnosis is made.
Symptoms
Reasons to discuss this examination
- Persistent heartburn or acid reflux
- Pain or discomfort in the upper abdomen
- Nausea, poor appetite or a feeling of fullness
- Difficulty or discomfort when swallowing
- Black stool or unexplained anemia
- An abnormal result from a barium or H. pylori screening test
Preparation
Before your appointment
- 01
Bring your health screening report, referral letter or previous endoscopy report if available.
- 02
Tell the clinic about medical conditions, allergies and all current medication. Do not stop medication on your own.
- 03
Follow the clinic’s individual instructions about food, drink and medication before the examination.
- 04
Tell the clinic in advance if you are pregnant, breastfeeding, unwell on the day, or plan to drive after the examination.
Aftercare
After the examination
- Follow the instructions given on the day before restarting food and drink.
- If a sedative is used, you must not drive a car, motorcycle or bicycle for the rest of that day.
- If tissue is taken, you may receive additional instructions about meals, alcohol and exercise.
- Contact the clinic if you develop concerning symptoms after the examination.
FAQ
Gastroscopy questions
Can I book before deciding whether I need gastroscopy?
Yes. Select “not decided” on the booking request. The clinic will review your symptoms and screening results before confirming the next step.
Can I choose a transnasal or transoral examination?
Both transnasal and transoral gastroscopy are available. The clinician will review your symptoms, examination purpose, preference and nasal condition before recommending an option.
Is sedation available?
Yes. A clinician will review your preference and health before deciding whether sedation is appropriate. You will rest at the clinic afterward, and you must not drive that day.
How long does gastroscopy take?
Observation usually takes about six to seven minutes. Your total visit is longer because it includes preparation, recovery when sedation is used and the explanation of results.
Should I stop my medication?
Do not stop medication without medical advice. Prepare a current medication list or medication notebook for the clinic.
Medical references
The clinic’s individual instructions take priority. Japanese source pages are provided for medical reference.
Contact
Ask us about gastroscopy
You can start a booking request even if you are not sure which examination you need.