Gastroscopy (upper endoscopy) and colonoscopy are used to evaluate symptoms
of the digestive tract and to identify disease, including early-stage conditions.
These examinations are performed using standard endoscopic techniques with attention
to safety and patient comfort.
What are gastroscopy and colonoscopy
Gastroscopy examines the esophagus, stomach, and duodenum using a flexible endoscope.
Colonoscopy examines the large intestine and rectum to assess for inflammation,
polyps, bleeding, or cancer.
These procedures allow direct visualization of the digestive tract and,
when necessary, tissue sampling for pathological examination.
When these examinations are recommended
Endoscopic evaluation may be recommended for persistent digestive symptoms,
abnormal test results, or findings from health screening.
- Persistent abdominal pain, heartburn, nausea, or difficulty swallowing
- Blood in stool, black stools, anemia, or unexplained weight loss
- Abnormal findings on health checkups or cancer screening
- Follow-up of known gastrointestinal conditions
How the examination is performed
The examination is performed using a flexible endoscope by trained physicians.
Sedation may be used when appropriate.
For colonoscopy, bowel preparation is required in advance to allow adequate visualization.
The examination method and use of sedation are determined based on clinical condition.
After the examination
Results are explained after the procedure.
If tissue samples are taken, final results are available after pathological analysis.
Further evaluation or follow-up may be recommended depending on the findings.
Appointment
Appointments are required in principle.
A referral letter from another medical institution is recommended but not mandatory.
For appointment requests and language support, please see the
Gastroenterology page.