Skip to content

Areas of Expertise and Procedures

Areas of Expertise

General surgery refers to a surgical discipline that includes but is not restricted to surgical procedures performed on the colon, liver, appendix, gallbladder, and stomach. At Nobel Surgery, Dr QM Leong and his team will strategically determine the procedure that is most suited for your condition or diagnosis, utilising effective surgical procedures to provide the utmost in treatment and care for each patient.

Click on each section to read more about our areas of expertise, featuring the condition’s symptoms, risk factors, and available treatment options.



Hemorrhoids or known as piles are swellings containing enlarged blood vessels that are found inside or around the bottom (the rectum and anus).

Colorectal Cancer

Colorectal Cancer

Colorectal cancer is cancer that occurs in the colon (large intestine) or rectum. It mainly affects people above the age of 50.



Gallstones are thought to develop because of an imbalance in the chemical make-up of bile inside the gallbladder.

Peptic Ulcer Disease

Peptic Ulcer Disease And Gastritis

It is not uncommon to experience digestive problems such as peptic ulcers and gastritis. The common symptoms are usually vomiting, discomfort and burning sensation.

Anal Fissures

Anal Fissures

An anal fissure is a small tear in the lining of the anal canal. Fissures are often confused with other anal conditions, such as haemorrhoids.

Anal Fistulas/Perianal Abscesses

Anal Fistulas/Perianal Abscesses

An anal fistula is a small tunnel that develops between the end of the rectum/anus and the skin near the anus.



A hernia occurs when an internal part of the body pushes through a weakness in the muscle wall.

Skin Lumps​

Lipoma And Sebaceous Cyst (Skin Lumps)

The two most common skin lumps are lipomas and sebaceous cysts. (epidermal cysts)

Screening for Colorectal Cancer

Colonoscopy Screening
For Colorectal Cancer
(Same Day Colonoscopy)

Colorectal cancer is cancer that occurs in the colon (large intestine) or rectum.

Diverticular Disease

Diverticular Disease​

Diverticula are small bulges or weaknesses that can develop in the lining of the large intestine (colon) as you age.

Change in Bowel Habit / Constipation​

Change in Bowel Habit / Constipation​

Changes in bowel habits including colour, consistency and frequency of stools can be potential causes for concern.

dr q m leong


As a well trained and experienced surgeon and endoscopist, Dr Leong performs a wide variety of procedures.

Dr Leong Performing Surgery