
Hello, this is Sungmo Best Internal Medicine, where we perform sleep gastroscopy in Jangok-dong, Siheung. National health check-ups can be received once every two years, and some people choose to add gastroscopy or colonoscopy at that time to check the condition of their internal organs in more detail. For those aged 30-40 and above, it's good to start managing early, so it's a test we often recommend in the consultation room.
Korea has a high incidence of cancer, and as dietary habits become increasingly stimulating and irregular, gastrointestinal diseases are also on the rise. Even if it's not your usual routine, we recommend checking your condition with a gastroscopy at least during your health check-up. Of course, even if it's not time for a check-up, if you frequently experience acid reflux, recurring heartburn, indigestion, or frequent vomiting, it's advisable to visit our internal medicine clinic in Jangok-dong and undergo a gastroscopy.
When we provide this information, there are always recurring questions. We've compiled information about meals and costs after sleep gastroscopy in the form of answers to frequently asked questions in the consultation room.

Q1. Can I undergo gastroscopy while sleeping?
To answer directly, yes, it is possible. The process is also relatively simple.
- Simple medical interview upon arrival
- Changing into a patient gown and undergoing sleep anesthesia
- Gastroscopy procedure (takes approximately 5-10 minutes)
The medical staff will meticulously explain the test results directly, so you don't need to worry. However, after a sleep examination, it's best to rest sufficiently until you fully recover consciousness, so please allow about 1-2 hours of extra time. It's even better if you come with a guardian, and we recommend leaving your car at home. If you're curious about the test preparation procedures, please check the Test Information in advance.

Q2. What should I eat after the examination?
The key to meals after sleep gastroscopy is to minimize irritation and discomfort to the gastric mucosa. The method also differs depending on whether a tissue biopsy was performed simultaneously.
| Category | Start of Meal | Recommended Foods |
|---|---|---|
| Examination only (no tissue biopsy) | 1 hour after examination | Porridge, gruel, soup, soft broth-based foods, soft bread like plain bread or castella |
| Examination with tissue biopsy | 2 hours after examination | Soft porridge, castella, etc. |
If you had a tissue biopsy, please remember one more thing: you should avoid alcohol and irritating foods for about 3 days. Regardless of whether a tissue biopsy was performed, we do not recommend greasy fried foods, salty, spicy, or heavily seasoned foods for a while.

Q3. How much does it cost?
The cost of sleep gastroscopy varies depending on whether anesthesia is used. Depending on the hospital and the patient's condition, detailed items may be adjusted, leading to a difference of anywhere from 30,000 won to 100,000 won. The most accurate way to confirm the exact amount is to receive guidance directly after a consultation.
Occasionally, some people hesitate to visit due to concerns about the cost, but in some cases, it may be possible to claim a refund depending on your subscribed private health insurance, which can significantly reduce your out-of-pocket expenses. However, please note that regular check-ups for preventive purposes may be difficult to claim, and the likelihood of receiving actual loss compensation is higher if problems such as polyps or tumors are found during the examination.

If you are preparing for a private health insurance claim
If you are planning to make a claim, it is advisable to prepare the following documents in advance:
- Medical fee receipt with detailed amounts
- Itemized statement including costs for each item
- Medical opinion letter proving that the examination was for treatment purposes, not preventive purposes
For your reference, the amount corresponding to sedatives is classified as non-covered, and whether it is compensated may vary depending on your subscribed actual loss insurance policy. Conversely, if it is included in the National Health Check-up items, the cost may be covered by the government, allowing it to proceed without out-of-pocket expenses, so we urge you to actively utilize such opportunities. Claim conditions may vary depending on individual insurance policies.

In Closing
We've compiled answers to frequently asked questions about meals and costs after sleep gastroscopy, as many people are curious about them. It's a given, but often forgotten, that the prognosis for any illness is better when discovered early. This requires regular examinations.
If you've been enduring abnormal signals in your body and postponing examinations and treatment, we hope you'll actively check them for your future self and for the family who cares about you. Sungmo Best Internal Medicine in Jangok-dong, Siheung, will meticulously examine each patient with the mindset of treating them like family. If you check our Clinic Hours before visiting, you can come and go comfortably without waiting.



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Dr. Kim Seonhoo (Specialist in Gastroenterology, Specialist in Gastrointestinal Endoscopy) · Medical Staff Introduction · Last reviewed 2026-08-06
