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Understanding Gastroscopy Screening in Singapore
If you have been dealing with ongoing upper abdominal pain, persistent reflux, or unexplained weight loss, your doctor may suggest a gastroscopy to find out what is going on inside your digestive tract.
A gastroscopy, also called an upper gastrointestinal (GI) endoscopy or oesophago-gastro-duodenoscopy (OGD), lets a doctor look directly at the lining of your oesophagus, stomach, and the first part of the small intestine. A thin, flexible tube with a small camera at its tip, known as an endoscope, is gently passed through the mouth so these areas can be viewed in real time on a screen.
The procedure is mainly used to diagnose the cause of upper digestive symptoms, check the extent of a known condition, and take small tissue samples when needed. Below, we explain what a gastroscopy can detect, how it is performed, how to prepare, and what costs to expect.
What Can A Gastroscopy Screening Detect?
Because a gastroscopy gives a direct view of the upper digestive lining, it can identify a range of conditions that imaging alone may miss. During the same procedure, your doctor can take tissue samples (biopsies) for laboratory analysis to confirm a diagnosis.
Common findings include:
- Gastritis and inflammation of the stomach, oesophagus, or duodenum. The doctor can see redness, swelling, or erosions and tell whether the irritation is recent or long-standing.
- Peptic ulcers, which are sores in the stomach or small intestine often linked to Helicobacter pylori infection or long-term use of anti-inflammatory medication. Gastroscopy shows their size, location, and any bleeding.
- Gastro-oesophageal reflux disease (GERD), where stomach acid flows back into the oesophagus and causes irritation. The procedure helps gauge how much damage the acid has caused.
- Strictures, or narrowing of the food pipe, which can make swallowing difficult or uncomfortable. A gastroscopy reveals the length and severity of the narrowing and helps identify the cause.
- Early signs of gastric (stomach) cancer. Early changes in the stomach lining can be subtle, appearing as small irregularities or discolouration. Direct inspection paired with a biopsy supports early detection, which can improve treatment outcomes.
Benefits of Early Gastroscopy Screening
Many upper digestive conditions develop slowly and may cause only mild symptoms at first. Identifying them early gives you and your doctor more options and often makes treatment simpler. Early gastroscopy can help to:
- Detect ulcers, inflammation, or abnormal growths before they progress
- Begin treatment sooner to relieve symptoms
- Lower the chance of complications such as bleeding or scarring
- Support timely diagnosis of gastric cancer, when outcomes are generally better
- Help you return to comfortable eating and daily routines
What Is The Cost Of A Gastroscopy Screening?
The cost of a gastroscopy in Singapore generally falls between $150 and $2,500 (SGD), depending on several factors. The figure usually reflects the consultation, use of the endoscope, sedation, and recovery room time.
What you pay can vary based on:
- The clinic or hospital setting where the procedure is performed
- The type and level of sedation used
- Whether biopsies, polyp removal, or other treatments are carried out during the same session
- Laboratory analysis of any tissue samples taken
- The experience of the attending specialist
On the insurance side, many Singapore health plans cover gastroscopy when it is medically indicated. Integrated Shield Plans, which complement basic MediShield Life cover, may also apply. Coverage terms and cashless arrangements differ between policies, so it is worth reviewing your plan details and confirming eligibility with our clinic team before your appointment.
What To Expect During A Gastroscopy Screening in Singapore?
A gastroscopy is usually carried out as a day procedure, so you can go home the same day. The whole process is designed around your comfort and an accurate diagnosis.
Here is what the journey typically looks like:
- Consultation: Your doctor reviews your medical history, current medications, and any allergies, then answers your questions before getting started.
- Sedation: A sedative is given through a vein to help you relax, and a numbing spray may be applied to the throat to ease the gag reflex.
- Insertion: You lie on your left side with a soft mouth guard to protect your teeth. The endoscope is gently guided through your mouth into the stomach. You can breathe normally throughout, though you may feel mild pressure as a little air is introduced for a clearer view.
- Inspection and tissue samples: Live images appear on a monitor while the doctor examines the oesophagus, stomach, and duodenum. If needed, small tissue samples are collected through the endoscope for analysis.
- Treatment, if required: In some cases the doctor can treat a finding during the same session, such as removing a polyp, easing a narrowed area, or stopping a bleeding ulcer.
- Recovery: Once the endoscope is removed, you rest in a monitored area until the sedation wears off, usually 30 minutes to a few hours.
- Follow-up. The doctor discusses initial findings afterwards. If biopsies were taken, results take a few days, and a follow-up appointment is arranged to go through them.
How To Prepare For A Gastroscopy Screening/Surgery?
Good preparation helps the procedure go smoothly and keeps the view of your upper digestive tract clear.
A few simple steps will help you get ready:
- Fast Beforehand: You will usually be asked to stop eating and drinking for around 6 to 8 hours before the procedure, as an empty stomach gives a clear view and reduces the risk of stomach contents entering the airway. Small sips of water may be allowed up to two hours before, but always follow your doctor’s instructions.
- Review Your Medications: Share a full list of what you take, including prescriptions, over-the-counter products, vitamins, and supplements. Some medicines, such as blood thinners or anti-inflammatory drugs, may need to be paused, since they can raise the risk of bleeding if a biopsy or treatment is performed.
- Plan Your Day: Avoid strenuous activity on the day itself, and arrange for a family member or friend to take you home afterwards, as the sedation can leave you drowsy and unfit to drive.
Is Getting A Gastroscopy Screening Safe In Singapore?
Gastroscopy is a routine and generally safe procedure, and a reliable way to examine the upper digestive tract. Most people experience nothing more than temporary drowsiness from the sedation, a mild sore throat, or some bloating.
As with any medical procedure, there is a small risk of complications such as bleeding, infection, or a tear in the digestive tract wall, though these are uncommon. Your doctor will talk through the risks relevant to your situation so you can make an informed decision.
Recovery After Gastroscopy Screening
Recovery from a gastroscopy is usually quick and straightforward. You will rest in a monitored area until the sedation wears off, and a friend or family member should accompany you home.
For the rest of the day, you may feel a little drowsy and notice a mild sore throat or bloating. These sensations typically settle within a few hours. Start with light, easy-to-digest foods and plenty of fluids before returning to your usual diet the next day.
Many people feel ready to resume normal activities, including work, the following day, though it is sensible to avoid driving and important decisions for at least 24 hours after sedation. Contact the clinic if you develop severe abdominal pain, persistent vomiting, black stools, or a fever, as these may need prompt review.
When Should You See a Gastroscopy Specialist?
Occasional indigestion is common and rarely cause for concern. When symptoms are persistent, severe, or unusual, a specialist assessment can help identify the cause before it becomes more serious.
See a doctor promptly if you notice any of the following:
- Black or tarry stools, a possible sign of internal bleeding
- Persistent vomiting or vomiting blood
- Unexplained weight loss
- Ongoing abdominal pain or bloating
- Difficulty or pain when swallowing
- Heartburn or acid reflux that does not improve with medication
- Feeling full quickly after eating small amounts
- Fatigue or weakness related to anaemia
A family history of gastric or other gastrointestinal cancers is also a good reason to discuss screening with your doctor, even if your symptoms are mild.
Comparing Gastroscopy to Other Diagnostic Procedures in Singapore
Knowing how these investigations differ can help you understand why a particular one is recommended.
A gastroscopy examines the upper digestive tract, namely the oesophagus, stomach, and the first part of the small intestine, and allows biopsies to be taken. A colonoscopy looks at the lower tract, inspecting the large intestine and rectum. Both give a direct, close-up view, but they target different areas.
A CT scan, by contrast, produces wider images of the abdomen and is useful for spotting broader structural changes. It cannot, however, provide the close mucosal view or the tissue sampling that a gastroscopy offers.
Is Gastroscopy Painful?
Understandably, many people worry the procedure will be uncomfortable. In practice, gastroscopy is generally well tolerated. It is most often performed under light sedation, with a numbing throat spray, so most patients feel relaxed and notice little during the examination.
General anaesthesia is not usually needed for a routine gastroscopy, but it may be considered for patients with significant anxiety, difficulty tolerating sedation, or certain medical conditions. If you have concerns, discuss them with your specialist beforehand so the safest and most suitable option can be chosen for you.
Diet & Lifestyle Tips After Gastroscopy Screening in Singapore
What you eat in the hours after your gastroscopy can help your digestive system settle.
Start gently with light, easy-to-digest options such as clear soups or broth, plain rice or porridge, soft fruit like banana, steamed vegetables, and warm water or herbal tea.
For the first day, it helps to avoid:
- Heavy, greasy, or heavily spiced meals
- Alcohol and caffeine for at least 24 hours
- Carbonated drinks that can cause bloating
- Smoking, which irritates the digestive lining
Easing back into your normal diet over a day or so gives your digestive tract time to recover comfortably.
Why Choose Advanced Colorectal and General Surgery for Gastroscopy Screening
Advanced Colorectal and General Surgery at Mt. Alvernia Hospital is a dedicated centre for colorectal and general surgical care, with a focus on diagnostic and therapeutic endoscopy.
The clinic is led by Dr QM Leong, who has decades of experience in endoscopic, laparoscopic, and colorectal surgery in Singapore. Gastroscopy here is performed using minimally invasive techniques in a day-surgery setting, supported by infection-control protocols and a recovery area for monitored aftercare. For patients who prefer to move quickly from consultation to procedure, a same-day option helps streamline the process while keeping comfort in mind.
Consult With Dr Leong About Gastroscopy Screenings
A gastroscopy is an effective way to examine the upper digestive tract and diagnose conditions early, when they are often easier to manage. Careful preparation and experienced hands help keep the procedure safe and comfortable.
Dr QM Leong is a colorectal specialist in Singapore with experience diagnosing and treating a range of gastrointestinal and colorectal conditions, including gastric problems, haemorrhoids, hernias, gallstones, and colorectal cancers. He also performs cyst removal, gallstone removal, hernia surgery, colonoscopy screenings and other minimally invasive procedures.
Frequently Asked Questions About Gastroscopy Screenings
Does the cost of gastroscopy include follow-up consultations?
Gastroscopy fees usually cover the procedure itself, while follow-up consultations and biopsy analysis may be billed separately. We recommend confirming exactly what is included when you book, so you have a clear picture of the total cost beforehand.
Are there additional charges for biopsy or lab tests?
Yes. If tissue samples are taken during your gastroscopy, the laboratory analysis is generally charged separately from the procedure fee. Your doctor will explain any likely additional costs before the examination so there are no surprises afterwards.
What are the financial or insurance options available?
Many Singapore insurance plans, including Integrated Shield Plans, may cover gastroscopy when it is medically indicated. Coverage and cashless arrangements vary by policy, so review your plan details and speak with our clinic team about what applies to you.
How does your clinic ensure safety during a gastroscopy?
Clinics ensure cleanliness and safety during gastroscopy services in Singapore by adhering to stringent sterilisation protocols and infection control measures. These protocols include using disposable equipment when possible, thoroughly sterilising reusable instruments, and maintaining a clean and sanitised environment.
We follow established sterilisation and infection-control protocols, using single-use accessories where appropriate and thoroughly disinfecting reusable endoscopes between patients. Sedation is monitored throughout, and you are observed in a recovery area until its effects have worn off.
What should I expect during my first consultation?
Your first consultation involves reviewing your symptoms, medical history, and current medications. Dr Leong will explain whether a gastroscopy is appropriate, how it is performed, and how to prepare. You are welcome to raise any questions or concerns at this stage.
Who should consider undergoing gastroscopy screening?
Gastroscopy may be recommended for people with persistent upper abdominal pain, difficulty swallowing, ongoing reflux, unexplained weight loss, or a family history of gastric cancer. Your doctor can advise whether the procedure suits your symptoms and risk profile.
How long does recovery take after gastroscopy?
Most patients recover within a day. You may feel drowsy for a few hours after sedation and notice a mild sore throat or bloating. These effects usually settle quickly, and normal activities can often resume the following day.
Is gastroscopy painful?
Gastroscopy is generally not painful. Sedation and a throat-numbing spray keep most patients comfortable, and many feel little during the procedure. You may notice mild throat soreness or bloating afterwards, both of which tend to ease within a few hours.
What symptoms require a gastroscopy?
Symptoms that may warrant a gastroscopy include black or bloody stools, vomiting blood, persistent heartburn, difficulty swallowing, unexplained weight loss, and ongoing abdominal pain. Speak with a doctor promptly if you notice any of these warning signs.
What affects gastroscopy costs in Singapore?
Costs depend on the clinic or hospital setting, the type of sedation used, and whether biopsies or treatments are performed during the procedure, along with the specialist’s experience. Laboratory analysis of any tissue samples taken can also influence the final total.
Insurance
Our surgery is on the panel of most of the major insurance companies and if you are covered by corporate insurance, you may be entitled to a cashless visit to our clinic.
Get In Touch
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