Tag: Endoscopy Precautions

Endoscopy in Your 20s: 4 Fasting Rules Before Your Exam

SummaryThink you’re too young in your 20s for an endoscopy? This guide covers why an upper endoscopy in your 20s matters, how it differs from a colonoscopy, how to choose between sedation and non-sedation options, and the fasting rules and precautions you need to know before the exam.

It’s easy to assume you’re too young to worry about an endoscopy.

Many people in their 20s brush off stomach discomfort as simple stress.

But a 2014 National Health Insurance Service survey found that gastritis cases among people in their 20s were increasing by an average of 4.4% per year.

Spicy delivery food and irregular eating habits are taking a toll on young adults’ digestive health.

endoscopy in your 20s

Article Preview
An upper endoscopy in your 20s can be a helpful preventive step for protecting young adults’ digestive health.
This article walks through the differences between an upper endoscopy and a colonoscopy, the features of sedation versus non-sedation options, and the fasting rules to follow before your exam.

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Should You Get an Upper Endoscopy in Your 20s?

Yes — if you’re in your 20s and have chronic indigestion or a family history of stomach disease, it’s safer to get checked.

An upper endoscopy in your 20s is a detailed exam designed to catch conditions like gastritis, ulcers, and polyps early, before they progress.

The national health screening program covers stomach cancer screening from ages 40 to 74, but if you have symptoms, an exam is worth considering regardless of age.

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Habits like spicy delivery food, frequent late-night eating, and irregular meal times are considered major contributors to rising digestive disease among young adults.

According to a 2014 survey by the National Health Insurance Service and the Kyunghyang Shinmun, gastritis cases among people in their 20s rose by an average of 4.4% per year, and women in their 20s were affected 2.2 times more often than men.

If you frequently experience heartburn or chronic indigestion, it’s safer to get checked sooner rather than later.

Key Points
· Even without symptoms, regular endoscopy screening is recommended starting in your 20s if you have a family history of gastrointestinal disease.
· Since people in their 20s aren’t covered under the national screening program, this exam can be done as an additional, self-pay (non-covered) test.

How Is an Upper Endoscopy Different From a Colonoscopy?

The two exams differ completely in what they examine and how you prepare.

An upper endoscopy examines the esophagus, stomach, and duodenum, while a colonoscopy examines the entire colon and rectum.

Because the exams serve different purposes, the preparation process differs as well.

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Category	Upper Endoscopy	Colonoscopy
Area Examined	Esophagus, stomach, duodenum	Entire colon and rectum
Conditions Detected	Gastritis, stomach ulcers, reflux esophagitis	Colon polyps, inflammatory bowel disease
Preparation	Fasting for 8+ hours	Bowel prep solution, dietary adjustments

If you choose the sedation option, you’ll be given a sedative.

It’s safer to bring someone with you on the day of the exam, and you should avoid driving or making important decisions afterward.

If you feel dizzy or have a headache after the exam, it’s best to rest until it passes.

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Caution
If you’re taking aspirin or blood thinners, be sure to discuss whether to stop them with your prescribing doctor before the exam.

How Should You Fast Before an Endoscopy?

Following the preparation rules closely is key to getting accurate exam results.

If you don’t follow the rules, your exam may need to be rescheduled or its accuracy may suffer.

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Checklist
✅ Stop eating after 8 p.m. the night before the exam
✅ Discuss any medications you’re taking with your doctor beforehand
✅ For a colonoscopy, avoid fruit with seeds and multigrain rice starting 3 days before
✅ Avoid all water, coffee, and other beverages on the day of the exam

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Smoking on the day of the exam can stimulate stomach acid production and interfere with the procedure, so avoid it.

Following these small precautions is the first step toward a safe exam.

Key Points
· For an upper endoscopy, fast for at least 8 hours before the exam; for a colonoscopy, follow the fasting schedule tied to your bowel prep solution.
· If you choose sedation, avoid driving yourself on the day of the exam.

Result
Following the fasting and medication guidelines helps keep your digestive tract clear, which can support the detection of polyps or early-stage lesions.

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Being young doesn’t automatically mean perfect health.

While your body still recovers quickly, it’s worth listening to the signals it sends and staying ahead with regular checkups.

Talking with a trusted medical team is the first step, and you can find more hospital information at Burn Treatment Information, [Ansan Open Surgery Hospital] Home.

Frequently Asked Questions

1. Should people in their 20s get an upper endoscopy?
The national health screening program covers stomach cancer screening starting at age 40, but if you’re in your 20s and have persistent heartburn, indigestion, or a family history, an exam is recommended.

2. Which is better, sedation or non-sedation endoscopy?
Non-sedation lets you return to your daily routine right after the exam, while sedation reduces gagging and discomfort for a more comfortable experience. You can choose based on your personal preference and condition.

3. Can I drink water on the day of the exam?
You should avoid water before an upper endoscopy too. Any water remaining in your stomach can obscure the view and make an accurate diagnosis harder, so complete fasting is necessary.

4. When should I take the bowel prep solution before a colonoscopy?
It’s typically taken in divided doses at times specified the day before the exam. Follow your hospital’s specific instructions on timing and method.

5. Can I eat right after the exam?
If a biopsy or polyp removal was performed, it’s safer to fast for the period your medical team advises, or start with easily digestible foods.

References

· Sisa Journal, “Stomach Cancer Screening Guidelines Change After 10 Years: Ages 40-74 Advised to Get an Upper Endoscopy Every 2 Years,” Sisa Journal, 2026. Read more
· Kyunghyang Shinmun, “Gastritis: Women in Their 20s Affected 2.2 Times More Than Men,” Kyunghyang Shinmun, 2014. Read more

This article is for general health information purposes only and is not a substitute for individual diagnosis or treatment. If you have symptoms, please consult a medical professional.

September 22, 2026

Unsedated Endoscopy: Why the Pain Lasts Only 10-15 Minutes
SummaryWorried about pain during an unsedated endoscopy? Here’s a medically informed overview of the exam duration, fasting preparation, and breathing techniques that may help reduce gagging.
Table of Contents

What Is an Unsedated Upper Endoscopy?

How Painful Is an Unsedated Endoscopy, Really?

What Preparation and Breathing Techniques Help Reduce Pain and Gagging?

Frequently Asked Questions

References
Lying on the exam table, the procedure lasts at most 10 to 15 minutes — but how that short window feels can vary considerably, from a manageable experience to a difficult one.

That’s why reactions to unsedated endoscopy vary so widely from person to person.
Some people find it more manageable than expected, while others say they’d rather not go through it again.

So why do people react so differently to the same exam?

💡 Quick preview
Unsedated upper endoscopy is performed using only a local throat anesthetic, with no sedative, so no recovery time is needed and you can typically return to your normal routine right after the exam.
That said, you may feel gagging or a foreign-body sensation as the scope passes through your throat — this can often be reduced with proper breathing and preparation beforehand.
Below, we cover the actual pain level, exam duration, and tips that may help you get through an unsedated endoscopy more comfortably.

What Is an Unsedated Upper Endoscopy?

An unsedated upper endoscopy is a procedure in which a doctor inserts an endoscope to examine the inside of the stomach without a sedative, using only a local anesthetic applied to the throat.

It’s typically chosen by people who are wary of sedation-related risks or who prefer not to lose consciousness, even briefly.

Before the exam, you hold a local anesthetic in your mouth and throat before swallowing it, which numbs the area and can reduce discomfort as the scope passes through.

That said, the numbing isn’t complete, so a brief foreign-body sensation may remain as the scope enters.

One notable advantage is that no separate recovery time is needed.
You can typically drive or return to work right after the exam, which can be helpful for working professionals with limited time to spare.

🚀 Key benefits of an unsedated exam
· No separate recovery time needed after the exam
· You can drive yourself and return to your routine the same day
· Lower risk of side effects associated with sedatives

How Painful Is an Unsedated Endoscopy, Really?

In short, it tends to feel less like sharp, cutting pain and more like gagging and pressure.

As the scope passes through the throat into the esophagus, a strong gag reflex can occur.

Tensing your throat at this point can cause friction against the scope, which may increase discomfort or, in some cases, lead to minor bleeding — so staying relaxed matters.

According to health information from Asan Medical Center, the duration of an unsedated upper endoscopy varies by patient but is generally around 10 to 15 minutes.

If a polyp is removed or a biopsy is taken, the exam may run a bit longer.

The actual observation time is short, but breathing incorrectly can make the exam feel much longer than it is.
Breathing slowly and following your medical team’s guidance may help reduce discomfort.

📋 Step-by-step overview of the exam
1. Take an anti-foaming agent and hold the throat anesthetic in your mouth
2. Lie on your side on the exam table and bite down on the mouthpiece
3. The endoscope is inserted to examine the stomach (about 10-15 minutes)
4. Results are discussed after the exam

What Preparation and Breathing Techniques Help Reduce Pain and Gagging?

Fasting properly beforehand and using the right breathing technique during the exam may help reduce pain and gagging.

According to Asan Medical Center, you should fast for at least 8 hours before an upper endoscopy.
Typically, this means eating a light dinner around 6 p.m. the day before, then avoiding all food and water — including water — from midnight onward.

If food remains in the stomach, it not only makes observation harder but also raises the risk of reflux if gagging occurs.

Once the exam begins, it helps to breathe slowly in through your nose and out through your mouth, using deep abdominal breathing.

Trying to swallow saliva tenses the throat muscles and can worsen discomfort, so it’s better to simply let saliva drain out naturally.

Relaxing your shoulders and neck and keeping your gaze lowered can also help ease tension.
Staying calm may help reduce the gag reflex for some people.

⚠️ Things to keep in mind on exam day
· Tell your medical team in advance about any essential medications, such as blood pressure medicine
· Let saliva drain out naturally during the exam instead of trying to swallow it
· Try not to suppress burping, since it lets the stomach expand enough for a thorough exam
· Avoid eating or drinking for about 30 minutes, until the throat anesthetic wears off

If an unsedated exam feels too daunting, sedated (sleep) endoscopy is also an option.
It’s worth choosing based on your own sensitivity to gagging and your schedule for the day. You can also find more information about other services at [Ansan Open Surgery Hospital] Home.

Frequently Asked Questions

1. When can I eat after the exam?
Answer: You can typically drink water or have a light meal about 30 minutes to an hour after the throat anesthetic fully wears off. Swallowing food before the numbness has worn off can risk it entering the airway, so caution is needed.

2. My throat feels scratchy and sore after the exam — is that normal?
Answer: The scope can cause minor irritation to the throat lining, so mild discomfort may last a day or two. Drinking lukewarm water frequently can help with recovery.

3. Can I switch from unsedated to sedated once the exam has started?
Answer: Once the exam has begun, switching to sedation is difficult. If you tend to have a strong gag reflex or feel especially anxious, it’s best to discuss your options with your doctor beforehand and choose the method that suits you.

4. Who is a good candidate for an unsedated upper endoscopy?
Answer: It tends to suit people who need to return to their routine right away without recovery time, or who are concerned about sedation-related side effects. Those with a very strong gag reflex may find sedated endoscopy more comfortable instead.

References

· Asan Medical Center, “Esophagogastroduodenoscopy (EGD),” Health Information, Asan Medical Center. View here
· Asan Medical Center, “Upper Endoscopy (Unsedated),” Health Screening Information, Asan Medical Center. View here

This article is intended for general health information purposes only and is not a substitute for individual diagnosis or treatment. Please consult a physician if you have symptoms.
September 15, 2026

Colonoscopy Polyp Removal: 3 Reasons It Typically Doesn’t Hurt (Ansan Endoscopy Guide)

SummaryIs colonoscopy polyp removal really painless? The colon lining has very few pain-sensing nerves, so removal typically causes little to no discomfort. Here’s a full rundown of the symptoms that call for an Ansan endoscopy, plus pre- and post-procedure precautions and what recovery looks like.

Some patients book a colonoscopy, then keep pushing the date back.
Ask why, and nine times out of ten you’ll hear something similar.

“If they find a polyp, they remove it right there on the spot — that means cutting tissue, doesn’t it?
How can that not hurt?”

Here’s the short answer: colonoscopy polyp removal causes little to no pain in most cases.
The reason is built into the anatomy itself.

Key Point
This article walks through why colonoscopy polyp removal typically isn’t painful, the main symptoms that call for an Ansan endoscopy, what actually happens during an upper or lower endoscopy, and what to watch for before and after the procedure, in order.
Putting off screening out of fear of pain can carry a far greater risk.

Colonoscopy polyp removal

Why Doesn’t Colonoscopy Polyp Removal Hurt?

Short answer: removing a colon polyp typically causes little to no pain on its own.
The colon lining is tissue with almost no nerve fibers that transmit pain signals.

Skin and muscle are dense with pain-sensing nerve endings, but
the mucosal layer inside the colon is structurally different.

That’s why looping a snare around a polyp and cutting it away causes little to no sensation in the moment.
Sedation (sleep endoscopy) is also commonly offered alongside the procedure at endoscopy centers in Korea.

With the patient under light sedation, the exam and the procedure happen together, so any perceived discomfort is reduced further.

Key Point
✔ The colon lining has almost no pain-sensing nerves, so removal causes little discomfort.
✔ Most procedures are performed under sedation, with reduced consciousness.
✔ What patients notice afterward is usually not pain but bloating from the gas used during the exam.

Putting off screening out of fear of pain is actually the riskier choice.
Early-stage polyps rarely cause symptoms,
so without regular Ansan endoscopy checkups, they can go undetected longer than they should.

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What Symptoms Call for an Ansan Endoscopy?

If heartburn, blood in the stool, or unexplained weight loss keeps recurring, it’s worth checking the condition of the lining.
Endoscopy is a diagnostic procedure that uses a flexible, articulated scope to directly examine the lining of the digestive tract.

If upper abdominal pain keeps coming back or heartburn lingers for a long stretch,
it’s worth checking for changes in the esophageal or stomach lining.

In particular, sudden bloating after meals or
unexplained weight loss are signs that call for a closer look.

For the colon, a sudden change in bowel habits, blood in the stool, and persistent lower abdominal pain are the main warning signs.

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Checklist
✅ Chronic heartburn or indigestion that won’t go away
✅ Recurring upper abdominal pain or a sense of fullness
✅ Changes in bowel frequency or visible blood in the stool
✅ A family history of colorectal or stomach cancer
✅ Age 40 or older and eligible for the national cancer screening program

Digestive conditions often show few clear symptoms in the early stages.
That’s why checking the condition of the lining with regular Ansan endoscopy screening matters.

The earlier a condition is found, the easier it generally is to plan the next steps for care.

How Do Upper and Lower Endoscopies Differ?

The two exams differ in purpose and preparation.
An upper endoscopy examines the upper digestive tract, while a colonoscopy examines the lining of the lower digestive tract.

Before the procedure, the care team reviews any underlying conditions and
current medications with the patient.

If you’re taking aspirin or a blood thinner, whether to pause it beforehand should be discussed with your doctor
to help lower the risk of bleeding.

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Category	Upper Endoscopy	Colonoscopy
Fasting time	At least 8 hours of fasting	Fasting and bowel prep starting about 12 hours prior
Duration	About 5–10 minutes	About 15–30 minutes
Main purpose	Early diagnosis of gastritis, ulcers, and stomach cancer	Polyp detection with immediate removal, and colitis diagnosis

If a suspicious lesion turns up during the exam, a tissue biopsy can be taken on the spot, or
in the case of a colon polyp, removal can be performed during the same procedure.

What Should You Watch For Before and After the Procedure?

Following the dietary guidance for the 3 days before the exam and managing your first meal afterward is usually enough for a safe recovery.
Bowel prep before endoscopy is the process of clearing the bowel so that small lesions aren’t missed.

For a colonoscopy, avoid fruit with seeds, sesame seeds, laver, and seaweed starting 3 days before the exam.
If residue is left on the bowel lining, small polyps can be harder to spot.

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⚠️ Precautions for a Safe Recovery
1. No driving on the day of a sedation endoscopy: sedatives can impair judgment, so plan on public transit or having someone accompany you.
2. Managing your first meal afterward: if you had a biopsy or polyp removed, it’s best to start with a bland rice porridge or gruel about 1–2 hours after the procedure.
3. Review your medications: be sure to discuss blood pressure or diabetes medication with your care team beforehand.

What Recovery Typically Looks Like
Patients who follow the basic guidelines are generally able to return to daily activities the same day, though individual recovery can vary.
Choosing a facility with proper equipment and a dedicated gastroenterology team can help make the screening more comfortable.

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Our clinic also provides digestive endoscopy screening to
help look after the digestive health of the local community.

If you’d like to learn more about the hospital’s departments and screening equipment,
you can find an overview at Burn Treatment, [Ansan Yeorin Surgical Hospital] Home.

Colonoscopy polyp removal illustration 7

Frequently Asked Questions

1. Is there a risk I won’t wake up from sedation, or is it dangerous?
Sedatives used for sleep endoscopy induce a state of conscious sedation, unlike general anesthesia. Oxygen saturation and pulse are monitored in real time during the procedure, which helps it be carried out in a properly managed setting.

2. Does removing a colon polyp hurt a lot?

Because the colon lining has almost no pain-sensing nerve fibers, colonoscopy polyp removal itself causes little to no pain. That said, the gas used during the exam can cause temporary bloating.

3. How often should I get an endoscopy?
As a general guideline, an upper endoscopy is recommended once every 2 years from age 40, and a colonoscopy once every 5 years from age 50. If polyps have previously been found or there’s a family history, the interval may be shortened to every 1–3 years.

4. Can I take my usual medications or antacids on the day of the exam?
Blood pressure medication is often taken with a small amount of water early on the morning of the exam, but diabetes medication or insulin is usually withheld due to the risk of low blood sugar. Be sure to tell your care team about all medications you’re taking beforehand.

5. Does the polyp removal site need any special care afterward?
The removal site generally heals on its own. That said, avoid strenuous exercise and alcohol on the day of the procedure and the following day, and contact your clinic right away if you notice bleeding or severe abdominal pain.

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Colonoscopy polyp removal illustration 9

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References

· Asan Medical Center, “Polyp of Colon,” Disease Encyclopedia, Asan Medical Center. View
· Colorectal Cancer Screening Guideline Revision Committee, “Colorectal Cancer Screening Guidelines,” National Cancer Center / National Cancer Screening Program, 2015. View
· Gastric Cancer Screening Guideline Revision Committee, “Gastric Cancer Screening Guidelines,” National Cancer Center / National Cancer Screening Program, 2015. View

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This article is provided for general health information purposes and is not a substitute for individual diagnosis or treatment. If you have symptoms, please consult a physician.

September 9, 2026

Same-Day Endoscopy and Colonoscopy: 4 Prep Steps, Pros and Cons
SummaryIs a same-day endoscopy and colonoscopy safe? Here’s a complete guide to the benefits of combining an upper endoscopy and colonoscopy, how to prepare with bowel prep solution, and precautions for blood thinners.
Table of Contents

Is It Safe to Combine Both Procedures?

What Are the Benefits and Precautions of a Combined Screening?

What Preparation Is Needed for a Safe Procedure?

Can Everyone Get Both Procedures Together?

Frequently Asked Questions

References
Have you ever called to book a health checkup and hesitated, not knowing whether to ask about an upper endoscopy or a colonoscopy first?

Scheduling them separately means two trips to the clinic, but doing them together might make you worry about putting too much strain on your body.

The short answer: a same-day endoscopy and colonoscopy is a screening approach that can be performed safely for most adults.

In this article, we’ll explain how this combined screening actually works, along with its benefits and the precautions you need to know. We’ll also cover how to take your bowel prep solution, tips for preparing the night before, and cases where combining the two tests isn’t recommended.

Is a Same-Day Endoscopy and Colonoscopy Safe?

The short answer is yes — an upper endoscopy and a colonoscopy can be performed together on the same day, under a single sedation.
This combined screening method involves performing both procedures back-to-back on the same day.

This approach is widely used at comprehensive health checkup centers and gastroenterology clinics. Because you only need to go through bowel prep and fasting once for the colonoscopy,
it’s especially popular among busy professionals and anyone looking to save time.

How Does a Combined Test Differ From Separate Tests?

Category Combined Test Separate Tests

Fasting & bowel prep Once Twice

Sedation Once Twice

Clinic visits 1 day 2+ days

Physical burden Concentrated into one day Spread across two visits

💡 Key Point
When both procedures are done together, sedation is administered only once.
This offers the significant advantage of saving recovery time afterward.

What Are the Benefits and Precautions of a Combined Screening?

The biggest advantage is efficiency.
It’s not easy for working professionals to take multiple days off.

Being able to complete both tests under a single sedation
significantly reduces both the psychological and time burden.

That said, the physical demands must be considered carefully.
Taking the bowel prep solution for a colonoscopy can place more strain on the body than expected.

Because it causes significant fluid loss, older adults or those with underlying health conditions
should consult thoroughly with their doctor before deciding to combine the tests.

💡 Key Point
This combined approach only requires fasting and bowel prep once,
but keep in mind that the physical toll is roughly equivalent to that of both procedures combined.

⚠️ Caution
If you’re taking a blood thinner (anticoagulant) such as warfarin, consult your doctor before the procedure to
decide whether and when to pause it. Never stop or continue taking it on your own without medical guidance.

📋 Checklist
✅ Check whether you’re taking any regular medications (especially blood thinners)
✅ Confirm you’ve taken all the bowel prep solution on schedule
✅ Arrange for someone to accompany you on the day of the procedure
✅ Make sure you have enough time to rest after the procedure

What Preparation Is Needed for a Safe Procedure?

The key to an accurate endoscopic exam is thoroughly emptying the bowel for clear visibility.
If bowel prep isn’t done properly, residual stool can obscure the view and increase the risk of missing small lesions during the exam.

That’s why it’s important to strictly follow the fasting schedule and medication instructions provided by your clinic.
Many people find the taste of bowel prep solution difficult,
but improved-taste formulas are now widely available, so ask your clinic in advance.

Most importantly, eat a light meal and stay well hydrated the day before the procedure.
Avoiding fatty foods the night before can be challenging,
but following the preparation instructions carefully tends to make the procedure itself go more smoothly than expected.

🚀 Results and Benefits
Thoroughly emptying the bowel can help shorten the procedure time.
This reduces the time the endoscope spends inside the colon, which may in turn help reduce pain or discomfort after the procedure.

Can Everyone Combine Both Procedures on One Day?

Not necessarily.
For older adults or those with heart conditions who may find a longer procedure time burdensome,
doing the tests separately may be the safer option.

If you require specialized care tailored to your condition — such as ongoing management of a chronic illness or wound treatment —
we recommend consulting thoroughly with your dedicated medical team before and after the screening.
Visit the [Ansan Yeollin Surgery Hospital] homepage for more information on related treatments.

Frequently Asked Questions

1. Will I wake up during the procedure if I have sedation endoscopy?
In most cases, appropriate sedation means you’ll feel little to no discomfort. Some people may retain slight memories depending on individual response, but this generally isn’t a cause for concern.

2. Can I eat right after the procedure?
If a biopsy was taken during the upper endoscopy, soft foods are generally recommended starting 1–2 hours afterward. Right after the procedure, gentle foods like porridge are a good choice.

3. What if I’m taking blood pressure medication?
In many cases, it’s fine to take it with a small amount of water early on the morning of the procedure. However, guidelines vary by clinic, so be sure to check with your doctor beforehand.

4. Are there cases where getting the tests separately is better than a same-day endoscopy and colonoscopy?
For older adults or those with heart conditions who may find a longer combined procedure burdensome, doing the tests separately can be the safer choice.

5. How far in advance should I take the bowel prep solution?
Depending on your clinic’s instructions, it’s common to split the dose between the night before and early morning of the procedure. Following the prescribed timing and dosage closely has a major impact on how accurate the exam is.

References

· Seoul National University Hospital, “Colonoscopy,” Medical Information. Read more
· Korea Disease Control and Prevention Agency, “Colonoscopy Examination,” National Health Information Portal. Read more
· National Cancer Center, “Precautions Before Screening,” Cancer Screening Center. Read more

This article is intended to provide general health information and is not a substitute for individual diagnosis or treatment.
If you have symptoms, please consult a medical specialist.
August 9, 2026