General Information About Your Operation

Most patients are admitted to hospital the actual day of surgery.

Admission and fasting times will be advised by the hospital on the afternoon or night before your surgery. The times will vary depending on the expected time for your procedure. Patients having anorectal or colonic surgery may need some form of bowel preparation, which usually involves an enema on admission to hospital.

Patients having rectal surgery may require an oral bowel preparation with Picoprep as for a colonoscopy. Anal procedures most usually require the patient to have an enema on admission.

You may be required to attend the preadmission clinic in the hospital where you will have your operation. This affords an opportunity to familiarise yourself with the hospital as well as enabling a pre-anaesthetic assessment. For some patients blood tests, ECG and stomal therapy consultation are required.

Patients taking anticoagulant medications like ASPIRIN, WARFARIN, PRADAXA, EFFIENT, CLOPIDOGREL may have to stop these prior to surgery. Instructions are provided at the time of consultation and will vary with individual circumstances. Please check with the clinic if you are in any doubt.


You should take normal medications up to and on the day of surgery. If you are taking anticoagulants like ASPIRIN, CLOPIDOGREL, WARFARIN, PRADAXA or EFFIENT you doctor will provide specific instructions about whether to stop these prior to colonoscopy. If you are a diabetic on tablets or insulin, take advice from your GP or endocrinologist for the doses to take on the day of your colonoscopy.

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  • Fellow of the Royal Australasian College of Surgeons
  • Colorectal Surgical Society of Australia and New Zealand
  • Bond University