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Dr Rowan Collinson - General & Colorectal Surgeon

Private Service, General Surgery


8:00 AM to 5:00 PM.


Dr Rowan Collinson is a locally-trained Colorectal and General Surgeon. He is a Consultant at Auckland City Hospital, and in private practice at the MacMurray Centre, a multidisciplinary Gastrointestinal disorders clinic in Auckland. He undertook post-Fellowship training in Colorectal surgery in Sydney, Australia and Oxford, UK. He is a laparoscopic surgeon and colonoscopist who specialises in colorectal cancer, inflammatory bowel disease and pelvic floor disorders.

Rowan has a particular interest in colorectal disorders of the pelvic floor, including faecal incontinence and pelvic organ prolapse. This includes comprehensive assessment with anorectal physiology and endoanal ultrasound. Treatment is under-pinned by a multidisciplinary approach, and minimally invasive surgical techniques.
He is a member the Colorectal Surgical Society of Australia and New Zealand (CSSANZ) and the Association of Coloproctology of Great Britain and Ireland (ACPGBI).
What is Colorectal Surgery? 
The colon and the rectum are part of the digestive tract that processes the food we eat. Together they make up the large intestine or large bowel and are located in the abdomen between the small intestine and the anus. The colon is about 1.8m long and absorbs water and nutrients from food. The rectum is the last segment of the large intestine and is about 20 -25cm long. This is where waste material is stored before it passes out of the body through the anus.
A colorectal surgeon is a general surgeon who has had further training and specialises in the diagnosis and treatment of diseases of the colon, rectum, and anus.
What is General Surgery?
The role of the general surgeon varies, but in broad terms general surgery can be said to deal with a wide range of conditions within the abdomen, breast, neck, skin and sometimes, vascular (blood vessel) system. 
While the name would suggest that the focus of general surgery is to perform operations, often this is not the case. Many patients are referred to surgeons with conditions that do not need surgical procedures, but merely require counselling or medical treatment.


Referral Expectations

When you come to your appointment, your surgeon will ask questions about your illness and examine you to try to determine or confirm the diagnosis. This process may also require a number of tests (e.g. blood tests, x-rays, scans etc). Sometimes this can all be done during one visit, but for some conditions this will take several follow-up appointments. Occasionally some tests are arranged even before your appointment to try to speed up the process.
Once a diagnosis has been made, your surgeon will discuss treatment with you. In some instances this will mean surgery, while other cases can be managed with medication and advice. If surgery is advised, the steps involved in the surgical process and the likely outcome are usually discussed with you at this time.


Dr Rowan Collinson is a Southern Cross Affiliated Provider for Gastroenterology (Digestive system) services. These include :

  • Colonoscopy
  • Consultations
  • Flexible sigmoidoscopy
  • Physician/surgeon assessment and follow up
  • Proctoscopy
  • Sigmoidoscopy


8:00 AM to 5:00 PM.

Mon – Fri8:00 AM – 5:00 PM

Procedures / Treatments

  • Colorectal Cancer

    This is cancer that begins in your colon or rectum.… More

  • Inflammatory Bowel Disease (IBD)

    There are two types of IBD, ulcerative colitis and Crohn’s disease.  In these conditions, the immune system attacks the lining of the colon causing inflammation and ulceration, bleeding and diarrhoea.  In ulcerative colitis this only involves the large intestine, whereas in Crohn’s disease areas within the entire intestine can be… More

  • Gastrointestinal Disorders

    Conditions of the gut dealt with by general surgery include disorders of the oesophagus, stomach, small bowel, large bowel and anus.… More

  • Haemorrhoids

    Haemorrhoids are a condition where the veins under the lining of the anus are congested and enlarged.… More

  • Colonoscopy

    Colonoscopy is the examination of your colon (large bowel) using a colonoscope (long, flexible tube with a camera on the end).… More

  • Hernias

    A hernia exists where part of the abdominal wall is weakened, and the contents of the abdomen push through to the outside.… More

  • Gallstones

    General surgery covers some disorders of the liver and biliary system.… More

  • Rectal Prolapse


  • Colorectal Pelvic Floor Disorders


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Free off-street patient parking is provided at the clinic.

Contact Details

3 MacMurray Road
Auckland 1050

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Street Address

3 MacMurray Road
Auckland 1050

This page was last updated at 4:04PM on March 31, 2021. This information is reviewed and edited by Dr Rowan Collinson - General & Colorectal Surgeon.