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Don’t wait until it’s too late, get your Gastroscopy done with us!
Detection of stomach cancer in early stage can be curable.


Contact us today at 6250 5610 or WhatsApp us here.


A gastroscopy, also known as Oesophago-gastro-duodenoscopy (OGD) is an endoscopic procedure that is performed to examine the oesophagus (gullet), stomach and the first part of your small intestine, the duodenum.

A thin flexible tube with a small light and video camera is inserted through the mouth, until it reaches the duodenum. It is connected to a screen that allows Dr Tan to evaluate any abnormalities seen along the way.

Dr Tan will also test for the presence of Helicobacter Pylori bacteria. If the results come back as positive, he will provide you with medications for treatment.

You will be given sedation just before the start of your gastroscopy.

What is a Gastroscopy?
Oesophago-gastro-duodenoscopy (OGD)?

Why do I need to go for a Gastroscopy?

What are the Signs & Symptoms?

If you have any of the below-mentioned symptoms, you can be recommended to go
for a Gastroscopy.

Dr Tan Chun Hai, Surgicare, Singapore, Gastroscope, Stomach Cancer
  • Stomach pain

  • Abdominal bloating, burping

  • “Gastric pains”

  • Indigestion

  • Unexplained weight loss

  • Reflux, heartburn symptoms

  • Nausea and vomiting

  • Difficulty swallowing

  • Iron deficiency anaemia or low blood count

  • Family history of stomach cancer

What are the benefits of the procedure?


A gastroscopy is performed to examine the alimentary tract and diagnose conditions like stomach cancer, gastritis or peptic ulcers. Detection of stomach cancer in the early stage can be curable with better outcomes.


It may also be performed to treat conditions, such as bleeding ulcers, non-cancerous or cancerous growth or tumours.


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What to expect during the gastroscopy procedure?

  • You will consult Dr Tan in his clinic, and scheduled for gastroscopy at the next available time slot of your choosing.

  • You will check in to endoscopy centre 30 – 60 mins before gastroscopy.

  • Dr Tan or an anaesthetist will give you an injection of sedative just before the start of your gastroscopy.

  • You will be in deep sleep during the gastroscopy.

  • Gastroscopy will take about 10 - 15 minutes. If there are polyps or abnormalities detected, it will removed immediately and the scope may take longer.

  • Dr Tan will also check for any presence of Helicobacter pylori bacteria.

  • If you have a colonoscopy   scheduled together, it will be done after the gastroscopy.

  • You will be awake about 15-30mins after the gastroscopy /colonoscopy.

  • You will be monitored in endoscopy centre recovery area

  • Dr Tan will come and explain the results of your gastroscopy / colonoscopy when you are awake. Any medications required will be given to you at the same time.

  • You will be given some refreshments after you are fully awake.

  • How long will the procedure take?
    Generally, a colonoscopy takes less than 30 minutes. If there are polyps to be removed or abnormalities detected, it may take longer. Any polyps seen will be removed immediately and sent to the laboratories
  • What is a polyp?
    Colorectal polyps are abnormal growth of cells on the inner lining of the colon and rectum. They are common and incidence increases with age. Most polyps are benign (not cancer). But because polyps are caused by abnormal cell growth and, like cancer, grow through rapidly dividing cells, they can become cancerous. Through a colonoscopy, the polyp can be removed and sent for examination by a pathologist. Colonoscopy and removal of polyps decreases the incidence of colorectal cancer. Countries with colorectal cancer screening programs have reported a significant drop in colorectal cancer cases and deaths. This is due to early detection of colorectal polyps with colonoscopy, the removal of which prevents the development of cancer.
  • What is the treatment for colonic polyps?
    The treatment of colonic polyps involves performing a colonoscopy and removing the entire polyp. The removed polyp is then sent for histological examination to determine if it is benign (not cancer) or a malignant change (cancerous) has already occurred. Depending on the number and size of polyps removed, a follow up colonoscopy will be recommended from 1 to 5 years later. If there are any cancer cells found in the polyp, surgery may be required.
  • Can I do my gastroscopy and colonoscopy at the same time?
    Yes, we can schedule for gastroscopy and colonoscopy at the same visit.
  • How long is my recovery time?
    A colonoscopy is usually performed as an outpatient procedure, which means you will not have to spend the night in the hospital. With sedation, you will be placed under close monitoring at the endoscopy centre. You will be discharged when it’s safe to do so.
  • What are the alternatives to colonoscopy?
    Colonoscopy remains the gold standard of detecting and removal of colonic polyps. Other options can be considered for patients who are not fit for colonoscopy, or would like a non-invasive option. CT Colonography – this is a virtual colonoscopy performed by a CT scanner. It is being used to screen for polyps in the large intestine. After adequate bowel preparation, a tube is inserted into the rectum to inflate with gas while CT images of the colon and rectum are taken from various angles. Barium Enema – this entity is seldom used nowadays with the advent of CT colonoscopy. It involves using a white solution being inserted into the anus via a tube to coat the lining of the colon. This allows the colonic lining to be visible on X-ray, highlighting any difficulties of the white solution going through indicating an abnormality at the region. While these options are able to detect polyps in the colon, they are not as accurate as colonoscopy. In the event these polyps are found, colonoscopy will still have to be performed to remove them. Colonoscopy is still the recommended method for screening for colorectal cancer. Dr Tan will advice you according to your needs and preferences.
  • What are the risks of this procedure?
    Reaction to the sedation Perforation of the colon is rare, occurring in less than 0.1% of colonoscopy. Bleeding after polypectomies. Please inform Dr Tan if you are on blood thinners or anti-platelets medications. These are usually started if you had a stroke, heart attack or stent placed in your body. These medications are usually started by your GP, cardiologist or neurologist. Bleeding can occur immediately after the scope, or up to 10 days after the procedure. Abdominal Bloating – this usually settles within a day or two after the endoscopy. Sore throat
Frequently Asked Questions
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