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Colorectal Surgeon In Singapore


Colorectal and General Surgeon

Living in good health is essential for a fulfilling life, and taking care of your colorectal health is key to doing so. Many Singaporeans are at risk of contracting colorectal conditions, ranging from colorectal cancer to other conditions such as haemorrhoids, gallstones, hernias, as well as diverticular disease. Left untreated, these conditions can lead to pain and discomfort, and in severe cases even be life-threatening.

Our colorectal clinic (Singapore) is helmed by Dr QM Leong, an experienced colorectal doctor based in Singapore with decades of experience as well as specialising in numerous complex surgical procedures. From same-day colonoscopies to various forms of minimally invasive surgery, our colorectal clinic in Singapore delivers the utmost in quality service, prompt diagnosis, and effective treatment.


About Nobel Surgery

Dr QM Leong practices at Nobel Surgery Center (Mt. Alvernia Hospital), a one-stop treatment centre for colorectal diseases and conditions, under Healthway Medical Group in Singapore providing colonoscopy screening as well as general surgery services. It is helmed by Medical Director and Surgeon, Dr QM Leong. He is a colorectal doctor in Singapore specialising in various treatments for colorectal and general surgical issues, which include colorectal cancer, haemorrhoids, gallstones, gastric problems, hernias and piles treatment; amongst others.

Dr QM Leong is a firm believer in early detection, early intervention and preventative treatment. Hence, our clinic has adopted a wide range of minimally invasive surgical techniques as well as open surgery to achieve optimal treatment outcomes. Dr QM Leong is also a proponent of the Same Day Colonoscopy, allowing Singaporeans visiting our clinic to have their consultation and undergo their colonoscopy on the same day. This helps to smoothen the process from start to end while helping patients stay comfortable, encouraging them to seek proper screening and detect colorectal conditions before they increase in severity.

As a colorectal doctor in Singapore with decades of experience in laparoscopic surgery, endoscopic and emergency surgery, Dr QM Leong and our professional nursing staff are committed to providing quality treatment for every patient. Contact us today to arrange a consultation with us, where we will assess and manage your individual needs accordingly.

Dr QM Leong

Areas Of Expertise

Colorectal surgery refers to a group of surgical procedures to repair damage to the colon, rectum, and anus, as a result of various injuries or diseases. As an experienced doctor and colorectal specialist in Singapore, Dr QM Leong will accurately diagnose your symptoms before strategically determining the most ideal procedure for your condition.

At Nobel Surgery, we offer effective surgical procedures and are committed to providing the utmost in treatment and patient care. Click on each section to learn more about its symptoms and our available treatment options.


Hemorrhoids (Piles)

Hemorrhoids are swellings containing enlarged blood vessels that are found inside or around the rectum and anus. They vary in size and severity, and can cause itchiness, bleeding, and discomfort.

Colorectal Cancer

Colorectal Cancer

Colorectal (colon) cancer occurs in the colon or rectum region, and often exhibits few symptoms until advanced stages. Arrange for a colonoscopy at our Singapore clinic for early detection and treatment.



Gallstones likely form as a result of an imbalance in the chemical make-up of bile in the gallbladder, and can cause significant pain. Visit our colorectal doctor in Singapore for prompt treatment.

Peptic Ulcer Disease

Peptic Ulcer Disease And Gastritis

Peptic ulcers and gastritis are the most common digestive problems in Singapore. Chronic vomiting and abdominal disconformort are some of the common symptoms.

Anal Fissures

Anal Fissures

An anal fissure is a small tear in the lining of the anal canal, and can be caused by hard, dry bowel movements or loose, frequent bowel movements. They can result in sharp pain and bleeding.

Anal Fistulas/Perianal Abscesses

Anal Fistulas/Perianal Abscesses

Perianal abscesses are painful swellings near the anus, and can result in anal fistulas, which are small tunnels that form between the end of the rectum and the skin near the anus.



A hernia occurs when an internal part of the body pushes through a weakness in the muscle wall. It can potentially be life-threatening, and requires surgery by a colorectal doctor in Singapore.

Skin Lumps​

Lipoma And Sebaceous Cyst (Skin Lumps)

Two common types of skin lumps are lipomas, which are soft, fatty lumps that grow under the skin; and sebaceous cysts, which are sebum-filled lumps that also grow under the skin.

Screening for Colorectal Cancer

Colonoscopy Screening
For Colorectal Cancer
(Same Day Colonoscopy)

We offer Same Day Colonoscopy at our clinic in Singapore, where consultation and procedure take place within the same day, providing patients with greater ease and comfort.

Diverticular Disease

Diverticular Disease​

Diverticula are small bulges or weaknesses that can develop in the lining of the colon with age, and may require surgery in serious complications or when diverticulitis (inflammation) occurs.

Change in Bowel Habit / Constipation​

Change in Bowel Habit / Constipation​

A change in bowel habits can be seen in stool colour, consistency (degree of firmness), and frequency. They may signify the presence of a serious underlying medical condition.

Why Choose Dr QM Leong

The number of people suffering from colorectal conditions is increasing every year. It remains one of the most deadly forms of malignancy.

Dr QM Leong is an experienced colorectal surgeon in Singapore with relevant medical specialities, who will accurately diagnose your condition for any signs or symptoms before determining the ideal treatment for your condition. 

We are fully committed to providing a pleasant experience, treatment and patient care.

So do not hesitate to call us or make an appointment with us to understand more about the surgical procedures or your condition. Early detection also means fewer complications.

We will take care of the procedures you require while you focus on healing.