The inflammation of the lining of the stomach

Reflux (GORD)


Gastric acid leaks up into the oesophagus

Hiatus Hernia


Stomach slip through the diaphragm into the chest



A serious complication of gastroesophageal reflux disease



Solid particles that form from bile cholesterol and bilirubin in the gallbladder

Ulcerative Colitis

Ulcerative colitis

Inflammation of the inner lining of the colon causing blood and mucous diarrhoea

Crohn's disease

Crohn's disease

Inflammatory bowel disease that cause ulcers, fistulae, strictures & perforations



Condition of having multiple pouches (diverticula) in the colon

News and Updates

Dr Mohan Samarasinghe is a Member of Royal College of Surgeons Edinburgh

The Royal College of Surgeons of Edinburgh (RCSEd) is a professional organisation of surgeons. It is one of the oldest surgical corporations in the world and traces its origins to 1505 when the Surgeons of Edinburgh were formally incorporated as a craft guild of Edinburgh.

Dr Mohan presenting at The Grand Rounds of St Marks Hospital

Evolution & New Trends of Restoration following Proctocolectomy. Samarasinghe MH, Review Grand rounds - St Mark’s Hospital - London UK 2016.

Acquainted with the creator - Dr Robert Rutledge

Helping the creator of the excellent novel bariatric surgery - Mini Gastric Bypass by means of providing surgical illustrations to make the teaching clear...

Updates in inflammatory bowel disease - Frontiers

St Mark's flagship annual international conference, with symposia covering many of the most important topics in intestinal and colorectal disease.

First class surgical care in gastroenterology

I am a Consultant Surgeon in Gastroenterology which means, I manage all the diseases and conditions occur in the gastro-intestinal tract. Namely oesophagus, stomach, duodenum, panceas, liver, gallebladder, billiary system, small bowel, large bowel / colon, rectum and anal canal.

GI Diseases

I manage both cancers and non-cancer conditions. I use laparoscopic (keyhole) surgical techniques and enhanced recovery protocols to help ensure the best possible outcomes for my patients.

I obtained my MBBS from Faculty of Medicine - University of Colombo and completed my Local Surgical Training (MD, MRCS) at the National Hospital of Sri Lanka.

My specialised surgical training in gastroenterology (MD GI Surgery) was undertaken at National Hospital of Sri Lanka, Colombo North Teaching Hospital, IFSO Bariatric training Vienna - Austria, St Marks Hospital and St Marks Academic Institute - London,UK.

I have published a number of peer reviewed papers, book chapters and reports as well as presented at numerous national and international meetings.

I'm registered in Sri Lanka Medical Council (SLMC) and General Medical Council (GMC) UK.

All these culminate in providing you with the best, up-to-date, state-of-the-art surgical care for gastroenterological problems.

Latest Videos

Mini Gastric Bypass by Dr Mohan Samarasinghe

Mini Gastric Bypass for morbid obesity (Slightly modified Rutledge technique). The patient is of having BMI of 44.9. Biggest challenge in this particular patient is ...

Laparoscopic cholecystectomy after gallstone pancreatitis

This is a patient who underwent laparoscopic cholecystectomy after a bout of gallstone pancreatitis. Stigmata of inflammation and a widened cystic duct which ...

Bloodless Laparoscopic Cholecystectomy in 20 mins - By Dr Mohan Samarasinghe

Demonstration of Callot's triangle anatomy and critical view of safety in the process of laparoscopic cholecystectomy with bloodless dissection using only ...