Digestive symptoms are often dismissed as minor or temporary. Yet persistent discomfort, reflux, or unexplained pain can signal underlying conditions that require closer evaluation. Gastroscopy is commonly recommended as an early diagnostic step to reduce delays in identifying and treating underlying issues.
Gastroscopy, also known as upper endoscopy, is a clinically established diagnostic procedure that allows direct visual assessment of the oesophagus, stomach, and duodenum.
At Alpine Surgical Practice, gastroscopy is approached with a focus on diagnostic clarity, procedural safety, and patient comfort and ensuring each evaluation is both thorough and clinically meaningful.
Gastroscopy involves the use of a high-definition, flexible endoscope equipped with a camera and light source. This instrument is carefully guided through the mouth, allowing your doctor to examine the upper digestive tract in real time.
Unlike imaging tests, which provide indirect views, gastroscopy offers direct visualisation of the mucosal lining, enabling the detection of subtle abnormalities that may otherwise go unnoticed.
Where necessary, the procedure also allows for:
This combination of diagnostic and interventional capability makes gastroscopy a cornerstone in modern gastrointestinal care.
Gastroscopy and colonoscopy are both endoscopic procedures, but they examine different parts of the digestive tract and serve distinct diagnostic purposes.
Aspect | Gastroscopy | Colonoscopy |
Also known as | Upper endoscopy | Lower endoscopy |
Area examined | Oesophagus, stomach, duodenum | Large intestine (colon) and rectum |
Entry point | Mouth | Anus |
Procedure duration | 10–12 minutes | 17-25 minutes |
Preparation | Fast for 6+ hours | Bowel prep (laxatives) 1–2 days prior |
Sedation | Optional | Usually recommended |
Common indications | Reflux, ulcers, difficulty swallowing, upper GI bleeding, H. pylori | Colorectal cancer screening, polyps, chronic diarrhoea, lower GI bleeding, IBD |
Can take biopsies | Yes | Yes |
Recovery | Same day, mild throat discomfort | Same day, mild bloating |
Downtime | Minimal | Minimal |
Gastroscopy offers several distinct clinical advantages in evaluating the upper digestive tract:
By providing objective, real-time findings, gastroscopy allows for more precise clinical decision-making and a clearer direction for treatment.
Gastroscopy is typically advised when symptoms are persistent, progressive, or clinically unexplained. These may include:
The procedure plays a critical role in diagnosing a spectrum of upper gastrointestinal conditions, including:
The procedure plays a critical role in diagnosing a spectrum of upper gastrointestinal conditions, including:
Many of these conditions develop gradually and may not produce clear symptoms in their early stages. Gastroscopy allows for timely detection, which is particularly important in improving long-term outcomes.
Generally, digestive symptoms are often managed initially with over-the-counter medication or dietary adjustments, which can sometimes delay definitive evaluation. At the same time, several regional factors may contribute to ongoing or recurrent symptoms, including:
Because of these factors, symptoms may not fully resolve or may recur over time. In such situations, relying solely on symptomatic treatment can lead to prolonged uncertainty or delayed diagnosis.
Gastroscopy enables direct visual assessment of the upper digestive tract, allowing underlying conditions to be identified earlier rather than inferred. This is particularly important when symptoms persist, evolve, or are accompanied by warning signs.
A timely, indication-based approach ensures that patients receive appropriate investigation at the right stage, balancing clinical need with cost-conscious care.
Gastroscopy is designed to be efficient and well-tolerated, typically completed within 10 to 12 minutes. Patients can expect:
Before the procedure
You will be advised to fast for several hours to ensure clear visualisation of the stomach. Pre-procedure assessment helps determine whether sedation is appropriate.
During the examination
The procedure is carried out in a controlled, step-by-step manner to ensure both accuracy and patient comfort throughout.
Once the examination is complete, the endoscope is carefully withdrawn, and you will be guided to a recovery area for observation.
If additional steps are needed
Biopsies may be taken painlessly, and minor therapeutic procedures can be performed immediately if required.
For patients travelling from the Philippines, the process begins before you arrive in Singapore.
Dr Aaron Poh offers an initial online consultation, so you can discuss your symptoms, medical history, and whether gastroscopy is the appropriate next step without the need to travel first. This ensures that when you do make the trip, your visit is purposeful and well-planned.
Once a gastroscopy is confirmed as indicated, Alpine Surgical Practice's international patient coordinator assists with the practical aspects of your visit, including scheduling your procedure around your travel dates and ensuring all necessary arrangements are in place before you arrive.
As gastroscopy is performed as a same-day procedure with no overnight admission required, most patients are able to return home shortly after their visit. Initial findings are typically discussed on the day, with biopsy results reviewed via a follow-up consultation if required.
To begin the process, you may reach out to enquire about an online consultation with Dr Aaron Poh.
Following gastroscopy, most patients can return home on the same day. Patients may notice:
These effects are typically short-lived. If sedation is used, you will be advised to rest and avoid driving for the remainder of the day.
Findings are often discussed shortly after the procedure, while biopsy results (if taken) are reviewed during a follow-up consultation to guide further management.
Gastroscopy is widely regarded as a low-risk procedure when performed by experienced specialists in an appropriate clinical setting.
However, potential complications are uncommon but may include:
The cost of gastroscopy can vary depending on the complexity of the procedure and whether additional services such as sedation or biopsy are required. Some of the factors that can contribute to the final cost include:
Because each case is different, the most accurate way to understand cost is through a clinical assessment. This allows our specialist to determine whether gastroscopy is necessary, what level of care is appropriate, and whether additional steps, such as biopsy, are required.
You may benefit from a gastroscopy if:
At Alpine Surgical Practice, gastroscopy is performed by an experienced general surgeon and colorectal specialist using modern endoscopic equipment in accredited medical facilities, ensuring high standards of safety, accuracy, and patient comfort.
By combining clinical expertise with a personalised approach, the team ensures that your gastroscopy is not simply a diagnostic procedure, but part of a comprehensive strategy to address your digestive health concerns. If you are experiencing ongoing symptoms, scheduling a consultation is the first step towards clarity, reassurance, and appropriate care.
If you are experiencing persistent digestive symptoms or have concerns about your gastrointestinal health, early evaluation can make a meaningful difference.
Book a consultation with us to determine whether gastroscopy is appropriate for your condition and to receive a personalised care plan tailored to your needs.
Dr Aaron Poh is a fully accredited General Surgeon with dual subspecialties in Colorectal Surgery and Trauma Surgery, recognised by Singapore’s Specialist Accreditation Board and Ministry of Health. He is the Medical Director of Alpine Surgical Practice, with clinics located at Mount Elizabeth Hospital, Parkway East Hospital, and Farrer Park Hospitals.
Dr Aaron Poh has extensive experience, having performed over 5,000 endoscopic procedures. He is a strong advocate for early detection through colonoscopy, particularly for individuals at risk of colorectal cancer. His expertise includes advanced endoscopic techniques such as Endoscopic Mucosal Resection (EMR) for complex polyps and colonic stenting for obstructed cancers, which help patients avoid major emergency surgery.
When surgery is required, he specialises in minimally invasive laparoscopic colorectal cancer surgery, offering patients faster recovery with less pain and scarring. In addition to cancer care, he manages a wide range of anal conditions including haemorrhoids, fistulas, fissures, and abscesses, providing comprehensive colorectal treatment.
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