Hello, this is Sungmo Best Internal Medicine in Siheung. One of the most common questions we receive from those preparing for a colonoscopy is, "How much does the examination cost?" Today, beyond simply providing a price, we will explain why costs vary between clinics, what factors contribute to these differences, and how to assess the quality of an examination relative to its cost.
What is a Colonoscopy?
A colonoscopy is an examination where a flexible endoscope is inserted through the anus to directly observe the entire mucosal lining of the large intestine, from the rectum to the cecum. This allows for precise diagnosis by visually identifying lesions such as polyps, inflammation, bleeding, tumors, and ulcers.
- Real-time video observation with a high-resolution camera
- Immediate biopsy or polyp removal possible if abnormalities are found
- Suitable for early detection of colorectal cancer and adenomatous polyps
The examination itself typically takes 20-30 minutes. Preparation, such as taking bowel cleansing agents, begins the day before, and a recovery period may be needed after the examination. Regular examinations are especially important for individuals aged 50 or older, those with a family history of colorectal cancer, or those experiencing symptoms like abdominal pain, bloody stools, or weight loss. It is advisable to review the examination preparation procedures in advance via our Examination Guide.
Five Factors That Create Cost Differences
1. Health Insurance Coverage
This is the biggest variable.
| Category | Processing | Cost Burden |
|---|---|---|
| Performed based on doctor's judgment due to symptoms | Health insurance applies | Only pay the self-pay portion |
| Voluntary examination for screening purposes without symptoms | Non-covered | Full self-pay |
If you have symptoms such as abdominal pain, bloody stools, changes in bowel habits, or weight loss, health insurance coverage may be possible under diagnosis. On the other hand, if the examination is for routine screening without any symptoms, even the same examination may be classified as a non-covered item, leading to a cost difference of 2-3 times or more.
2. Sedation Colonoscopy
Sedation colonoscopy uses sedatives, so it is not covered by health insurance, and an additional cost of approximately 50,000 to 100,000 KRW may be incurred depending on the clinic. Since it offers the advantages of less discomfort during the examination and reduced patient movement, leading to clearer observation, it is advisable to confirm this cost item in advance before the examination.
3. Examination Equipment, Sterilization System, and Recovery Room Facilities
- Use of high-resolution endoscope equipment
- Automatic washer and high-pressure sterilization
- Real-time vital sign monitoring system during the examination
- Recovery room space and management system after the examination
Clinics equipped with these elements may have slightly higher examination fees, but this can also lead to differences in the clarity of interpretation and safety.
4. Examiner's Skill and Interpretation Reliability
Examinations performed by skilled endoscopy medical staff show differences in polyp detection rates, accuracy of lesion interpretation, and incidence of complications during the procedure. There are many cases where individuals proceed with an examination solely based on a low price without checking the examiner's experience, leading to missed polyps or early lesions that later develop into more serious diseases. We recommend considering the examiner's endoscopy experience along with the cost. You can check the examination staff at Sungmo Best Internal Medicine in our Medical Staff Introduction.
5. Polyp Removal and Biopsy
If polyps are found and removed or a biopsy is performed during the examination, additional costs will be incurred.
- Excision of 1-2 small polyps: Approximately tens of thousands of KRW
- Removal of multiple or large polyps: May exceed 100,000-200,000 KRW
However, most of these items are covered by health insurance, so the full amount is not self-pay, and the self-pay rate may vary depending on the case.
Frequently Asked Questions
Can I know the total cost before the examination? The basic examination fee can be confirmed in advance, but the final cost is determined after the examination, as the presence and number of polyps removed are decided during the procedure.
Is it very difficult if I don't have a sedation colonoscopy? It can vary from person to person. For sensitive individuals, we recommend sedation colonoscopy as they may experience pain or discomfort during the examination.
Is polyp removal covered by insurance? In most cases, health insurance coverage is possible, and a biopsy is also included, allowing you to confirm the pathology results after the examination.
What to Check Before Cost
Ultimately, rather than choosing a clinic based solely on price, you should consider:
- Examination equipment and hygiene system
- Medical staff's skill
- Availability of polyp removal and biopsy
- Emergency response system
Considering these conditions together will allow you to make a choice that protects your health while also saving costs.
A colonoscopy is one of the most direct ways to prevent colorectal cancer. If you are preparing for an examination in Siheung, we hope today's information serves as a guide for choosing a clinic. If you check our Consultation Hours Guide before your visit, your consultation will be much smoother.
If you are curious about colonoscopy costs, please inquire via chat
Dr. Kim Seonhoo (Specialist in Gastroenterology, Specialist in Gastrointestinal Endoscopy) · Medical Staff Introduction · Last reviewed 2026-08-06