Colorectal Surgery in Melbourne
At Specialist Surgical Group, our Melbourne-based colorectal surgeon, Dr Thomas Tiang (MBBS, FRACS), provides comprehensive assessment and management across the full range of colorectal conditions.
Dr Tiang is a Fellow of the Royal Australasian College of Surgeons (FRACS) with subspecialty training in colorectal surgery and offers both minimally invasive laparoscopic and robotic surgical techniques, as well as non-operative and procedural options.
Colorectal surgery covers a wide spectrum of conditions affecting the large bowel, rectum, anus, and pelvic floor. These conditions range from common and benign, such as haemorrhoids and anal fissures, through to more complex diagnoses, including colorectal cancer and inflammatory bowel disease. While many conditions can be managed non-surgically, some require procedural or operative treatment to achieve resolution or prevent serious complications.
We have clinics in Essendon and Bundoora, serving patients across Melbourne’s northern and western suburbs.
Call us today at (03) 9466 7338 to book a consultation.
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Mon – Fri: 9 AM – 5 PM
We are located in the heart of Essendon and Bundoora.
When to see a colorectal surgeon?
A consultation with Dr Tiang may be appropriate if you are experiencing any of the following:
- Rectal bleeding, whether bright red blood or blood mixed with stool
- A change in your normal bowel habit, including unexplained diarrhoea, constipation, or narrow stools
- Persistent or severe anal pain, discomfort, or itching
- A lump, swelling, or protrusion around the anus or rectum
- Discharge or mucus from the anus
- Unintentional weight loss or unexplained fatigue
- A family history of colorectal cancer or known hereditary bowel conditions
- A diagnosis of inflammatory bowel disease (Crohn’s disease or ulcerative colitis) requires surgical review
- Difficulty controlling bowel movements (faecal incontinence)
- An abnormal finding at colonoscopy, including polyps requiring removal
- A perianal abscess, fistula, or pilonidal sinus causing pain or recurrent infection
If you are unsure whether a referral to a colorectal surgeon is appropriate, your GP can help guide you. Our team is happy to discuss any concerns when you contact the clinic.
A GP referral is required to book your initial consultation.
Book a consultation today
(03) 9466 7338Our colorectal procedures

Haemorrhoids treatment
Haemorrhoids are swollen blood vessels in the lower rectum or around the anus and are one of the most common colorectal conditions, affecting an estimated 1 in 3 Australians at some point in their lives.
Treatment options range from outpatient rubber band ligation for Grade I to III internal haemorrhoids through to surgical haemorrhoidectomy for advanced or refractory cases, with most patients returning to normal activity within 1-4 weeks, depending on the approach.

Anal fissure treatment
An anal fissure is a small tear in the lining of the anal canal that causes sharp pain and bleeding during bowel movements, and may become chronic if initial conservative management fails.
Chronic fissures that do not respond to topical agents or botulinum toxin injection are effectively treated with lateral internal sphincterotomy, a brief day procedure with a high success rate, and most patients experience significant relief within 1-2 weeks.

Perianal abscess treatment
A perianal abscess is a painful collection of pus around the anus caused by infection of the anal glands that requires prompt surgical incision and drainage.
Follow-up assessment is essential, as approximately 30-50% of abscesses are associated with an underlying fistula-in-ano, which requires separate treatment once the acute infection has resolved.

Colon polyps removal
Colon polyps are growths on the inner lining of the large bowel that carry a risk of progression to colorectal cancer if left untreated, making early detection and removal important.
Most polyps are removed endoscopically during colonoscopy; larger or complex polyps that cannot be safely removed this way may require laparoscopic surgical resection, followed by regular surveillance colonoscopy.

Pilonidal sinus surgery
A pilonidal sinus is a tract beneath the skin in the natal cleft that can become chronically infected and tends to recur unless the sinus is surgically excised.
The technique, including primary closure or flap reconstruction, is tailored to the extent of disease and recurrence risk, with recovery ranging from 2-6 weeks depending on the approach used.

Anal fistula surgery
An anal fistula is an abnormal tunnel between the anal canal and the perianal skin, most commonly arising after a perianal abscess, that typically will not heal without surgical treatment.
Options include fistulotomy for simple, low fistulas and sphincter-preserving techniques, such as the LIFT procedure or an advancement flap, for complex fistulas, with healing confirmed at follow-up over 4-12 weeks.

Diverticular disease treatment
Diverticular disease occurs when small pouches form in the colon wall and become inflamed or infected, causing diverticulitis that can range from mild episodes to serious complications, including perforation or abscess.
Elective laparoscopic sigmoid colectomy is recommended for recurrent or complicated diverticulitis, with most patients returning to normal activity within 3-4 weeks of minimally invasive surgery.

Colorectal cancer surgery
Colorectal cancer is the second most commonly diagnosed cancer in Australia, and surgery remains the primary curative treatment for localised disease of the colon and rectum.
We perform laparoscopic and robotic-assisted resections, coordinated with oncology where needed, with most patients discharged within 3-5 days and returning to full activity within 4-6 weeks.

Rectal prolapse surgery
Rectal prolapse occurs when the full thickness of the rectum protrudes through the anus, causing discomfort and frequently associated faecal incontinence or constipation.
We offer laparoscopic and robotic-assisted rectopexy as the preferred approach for fit patients, with most discharged within 2-3 days and returning to normal activities within 3-4 weeks.

Faecal incontinence treatment
Faecal incontinence is the involuntary leakage of stool and is more common than widely recognised, significantly affecting quality of life and frequently under-reported by patients to their doctors.
Management is individualised and may include pelvic floor physiotherapy, sphincteroplasty, or sacral nerve stimulation, a staged day procedure with strong evidence for improving continence in appropriately selected patients.

Inflammatory Bowel Disease surgery
Inflammatory bowel disease encompasses Crohn’s disease and ulcerative colitis, both chronic conditions that may require surgery when medical therapy fails to control symptoms or complications arise.
We perform IBD surgery using minimally invasive techniques where possible and work closely with gastroenterologists to ensure surgery is appropriately timed and coordinated with ongoing medical management.
Book a consultation today
(03) 9466 7338Your colorectal surgery journey
Understanding what to expect at each stage helps reduce uncertainty and lets you feel fully prepared. Here is what the process typically looks like at Specialist Surgical Group.
1. GP referral
Your GP refers you to Dr Tiang. A standard referral is valid for 12 months and entitles you to a Medicare rebate on your consultation fee.
Ask your GP to address the referral to Dr Thomas Tiang where possible. If you are unsure whether a referral is appropriate for your symptoms, we can help guide you when you call.
2. Initial consultation
You will meet with Dr Tiang to discuss your symptoms, medical history, and any relevant investigations or imaging. He will explain your diagnosis and treatment options, answer your questions, and begin forming a personalised management plan.
In some cases, additional investigations such as a colonoscopy, CT scan, or anorectal physiology testing may be requested before a final recommendation is made.
3. Pre-operative assessment
Before any procedure, you will complete a pre-operative workup that may include blood tests, imaging, an ECG, and any specialist assessments relevant to your condition. This ensures you are in the best possible condition and allows Dr Tiang to finalise the operative plan.
You will receive clear instructions on fasting requirements, which medications to pause or continue, and what to bring on the day of your procedure.
4. Procedure day
All procedures are performed at an accredited Melbourne hospital by Dr Tiang and a dedicated theatre team. Most patients are admitted on the morning of the procedure.
Hospital stay varies considerably by procedure: minor anorectal operations are typically day procedures, while more extensive bowel surgery requires a stay of 3-7 days.
Dr Tiang will have discussed the expected hospital stay and what to anticipate on the day of your pre-operative appointment.
5. Post-operative recovery
Before discharge, you will receive written and verbal guidance covering wound care, activity restrictions, dietary advice, and warning signs to watch for at home. A follow-up appointment is scheduled before you leave the hospital.
You can contact our rooms directly during business hours with any questions, and after-hours support is available through your treating hospital for anything requiring urgent attention.
6. Long-term follow-up
Your care continues well beyond the procedure. Follow-up appointments are typically scheduled at 2 weeks and 6 weeks post-operatively, with ongoing access to our team for as long as you need support.
For conditions such as colorectal cancer or inflammatory bowel disease, follow-up schedules are individually tailored and may involve coordination with gastroenterologists, oncologists, or other specialists as part of your long-term care plan.
Meet our colorectal surgeon
Our colorectal surgeon is FRACS-qualified with specialist training at leading medical institutions in Australia. The procedures are performed at accredited Melbourne hospitals with full nursing and anaesthetic support.
Why choose us
Our difference lies in combining highly experienced surgeons with the latest surgical innovations and individualised care that puts you first.

Experienced surgeons
Dr Thomas Tiang is a Fellow of the Royal Australasian College of Surgeons (FRACS) with advanced specialist training in colorectal surgery.
He has performed many colorectal procedures in Melbourne and holds operating rights at accredited hospitals.

Multi-disciplinary team
Dr Thomas Tiang work alongside dedicated dietitians, psychologists, nurses, and care coordinators at every stage from your pre-operative assessment right through to your long-term follow-up appointments.
Psychological support and nutritional guidance are built into our standard pathway because we know that lasting results depend on more than surgery alone.

Minimally invasive techniques
Wherever clinically appropriate, Dr Thomas Tiang use laparoscopic (keyhole) techniques that involve just a few small incisions.
Compared with open surgery, this approach typically results in less postoperative pain, a shorter hospital stay, a reduced risk of wound complications, and a faster return to normal activities.
Our reputation speaks volumes

Book a consultation today
(03) 9466 7338Colorectal surgery FAQ
Yes. A GP referral is required to book an initial consultation with Dr Tiang. A standard referral is valid for 12 months and entitles you to a Medicare rebate on your consultation fee. If you need assistance finding a GP or are unsure whether a referral is appropriate for your symptoms, please contact our clinic, and we can help guide you.
A colorectal surgeon specialises in the surgical and procedural management of conditions affecting the colon, rectum, anus, and pelvic floor. Dr Tiang treats haemorrhoids, anal fissures, anal fistulas, perianal abscesses, pilonidal sinus disease, rectal prolapse, colorectal cancer, colon polyps, diverticular disease, inflammatory bowel disease (Crohn’s disease and ulcerative colitis), and faecal incontinence.
Most colorectal surgical procedures are listed on the Medicare Benefits Schedule (MBS) when performed for a clinically appropriate indication, including haemorrhoidectomy, colonoscopy with polypectomy, and bowel resection for colorectal cancer. Private health insurance covers the hospital and anaesthesia components for inpatient procedures, subject to your level of cover and any applicable waiting periods. We will provide a detailed fee estimate and out-of-pocket figure before any procedure is scheduled.
Laparoscopic (keyhole) surgery uses small incisions and a camera system to perform the procedure inside the abdomen, resulting in less post-operative pain, a shorter hospital stay, and faster recovery compared to traditional open surgery. Dr Tiang performs laparoscopic surgery for colorectal cancer resection, diverticular disease, and rectal prolapse repair wherever clinically appropriate. Robotic-assisted surgery is also available for selected procedures and offers enhanced precision for complex pelvic operations. In some cases, particularly emergency or highly complex operations, an open approach may be required. The most suitable technique for your situation will be discussed at your consultation.
Rectal bleeding should always be assessed by a doctor. While haemorrhoids are a common and benign cause, bleeding from the bowel can also indicate colorectal polyps, cancer, or inflammatory bowel disease. You should seek prompt review if bleeding is associated with a change in bowel habit, unexplained weight loss, or abdominal pain. If you are aged 45 or over with new rectal bleeding, earlier investigation is recommended to exclude serious underlying causes.
Recovery time varies significantly depending on the procedure performed. Minor outpatient procedures such as rubber band ligation for haemorrhoids or incision and drainage of a perianal abscess typically allow a return to normal activities within 1-2 days. More complex operations, such as bowel resection for colorectal cancer or rectal prolapse repair, involve a hospital stay of 3-7 days and a full recovery of 4-6 weeks. Dr Tiang will provide specific recovery guidance for your procedure during your consultation.
Located in Essendon & Bundoora
Keilor Road Specialist and Wellness Centre
163 Keilor Road, Essendon, VIC 3040
Mon – Fri: 9 AM – 5 PM
patient@specialistsurgicalgroup.com.au
(03) 9466 7338
UniHill Specialist Centre
Suite 32, 240 Plenty Road, Bundoora, VIC 3083
Mon – Fri: 9 AM – 5 PM
patient@specialistsurgicalgroup.com.au
(03) 9466 7338
Medical disclaimer
The information on this page is for general educational purposes only. It does not constitute medical advice, diagnosis, or treatment recommendations, and does not create a doctor-patient relationship. Individual circumstances vary significantly, and nothing on this page should be used as a substitute for personalised advice from a qualified medical professional.
If you have concerns about your health, please seek medical attention promptly. To discuss your specific condition and treatment options with our team, please book a consultation by calling us at (03) 9466 7338.
















































