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Dr. Ren Donglin

Chinese name: 任东林
Professor, Chief Physician, Doctoral Supervisor, Postdoctoral Co-supervisor . Anorectal Surgery
Dr. Ren Donglin is Director of Anorectal Surgery at the Sixth Affiliated Hospital of Sun Yat-sen University and head of its Pelvic Floor and Anorectal Disease Centre. A nationally recognised specialist, he has devoted more than thirty years to hemorrhoids, anal fistula and chronic constipation and is one of the earliest surgeons to use stapled hemorrhoidopexy in China.

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Coordinated end-to-end by Orisene

36
Years in clinical practice
5
National utility patents for TST technique
30+
Countries applying the TST technique

  • The Physician

About Dr. Ren Donglin

Dr. Ren Donglin is Director of Surgery and Director of Anorectal Surgery at the Sixth Affiliated Hospital of Sun Yat-sen University, and head of its Pelvic Floor and Anorectal Disease Centre. He has devoted more than thirty years to the integrated Chinese and Western medicine treatment of hemorrhoids, anal fistula, anal fissure and chronic constipation. He is one of the earliest surgeons in China to use stapled hemorrhoidopexy, with experience of more than two thousand procedures, and has proposed the no-bleeding technique and the concept of the integrated pelvic floor. He leads several national professional societies and has published more than eighty papers.
1、Director of Surgery and Director of Anorectal Surgery at the Sixth Affiliated Hospital of Sun Yat-sen University
2、Head of the Pelvic Floor and Anorectal Disease Centre and academic leader of pelvic floor anorectal surgery
3、Chairman of the Pelvic Medicine Committee of the Chinese Association of Geriatric Research
4、Honorary Chairman of the Coloproctology Committee of the Chinese Association of Integrative Medicine
5、Recipient of the National Famous Doctor award, Guangdong Medical Leading Talent and the first Guangzhou Famous Doctor award
6、One of the earliest surgeons in China to perform stapled hemorrhoidopexy, with more than two thousand procedures

Dr. Ren Donglin ’s Three Key Areas of Expertise

Three areas of focused expertise, each supported by a deep subspecialty team, high case volumes and an English-speaking care pathway coordinated by Orisene.

Hemorrhoids

He treats internal and external hemorrhoids with stapled hemorrhoidopexy, the tissue-selecting technique and minimally invasive procedures, tailoring treatment to each patient's symptoms and anatomy so that pain is reduced, recovery is faster and recurrence is kept low through long-term follow-up in clinic.

Anal fistula

He manages simple and complex anal fistula, including recurrent cases after previous surgery, using precise imaging and sphincter-preserving techniques such as the ligation of the intersphincteric fistula tract, so that the fistula heals while continence and normal anal function are preserved.

Pelvic floor and complex anorectal disease

He treats presacral tumours, rectal prolapse, rectovaginal fistula and faecal incontinence with reconstructive surgery, using an integrated pelvic floor approach that combines colorectal, urological and gynaecological expertise to restore function and improve quality of life for patients with difficult disease.

More： chronic constipation——integrated treatment; anal fissure——treatment; rectal prolapse——surgery; faecal incontinence——reconstruction; pelvic pain——diagnosis

  • Clinical Practice & Publications

Selected cases, research & publications

Representative work drawn from documented clinical treatments, publicly indexed literature, and hospital project records, reflecting the depth of this physician's hands-on expertise and academic rigor.
1. Long-Term Outcomes After Presacral Tumour Resection (122 Patients)
This single-center series reviewed 122 patients with presacral (retrorectal) tumours treated over a decade, analyzing recurrence and survival after surgical resection. Most tumours were benign and removed by a posterior approach, providing guidance for patients with rare presacral or retrorectal masses and chronic pelvic pain.
2. Xiao Chengqi Formula for Slow Transit Constipation
This translational study evaluated a traditional Chinese formula, Xiao Chengqi, in slow transit constipation, linking its laxative effect to changes in gut microbiota, short-chain fatty acids, and serotonin signaling. It offers supportive evidence for patients with chronic or refractory constipation seeking integrative treatment options.
3. Perianal and Perineal Rhabdomyosarcoma: A 35-Case Multicenter Study
This multicenter study analyzed 35 patients with perianal or perineal rhabdomyosarcoma, a rare and easily misdiagnosed soft-tissue tumour that often mimics a perianal abscess. It highlighted biopsy and MRI assessment of painful perianal masses and recommended multidisciplinary management for better outcomes.
4. Innovating Minimally Invasive Treatment for Hemorrhoids and Complex Fistulas
A university media profile describes original work on the TST procedure for hemorrhoids, a minimally invasive technique now adopted in more than 30 countries and included in Chinese hemorrhoid guidelines. It also covers management of complex anal fistulas, addressing common anorectal complaints and their surgical treatment.
5. Treating a Rare Currarino Syndrome Case from Zambia
News reports describe a teenage boy from Zambia with Currarino syndrome who, after several failed operations abroad, underwent successful transsacral surgery in Guangzhou. The case illustrates multidisciplinary management of complex congenital pelvic and anorectal malformations causing chronic constipation and pelvic masses.
6. Building a Referral Network for Rare Presacral Tumour Surgery
According to Southern Rural Daily, the team has surgically treated more than 226 patients with presacral tumours, many traveling from other provinces, without severe complications. The report underscores his role as a referral expert for rare presacral and pelvic floor disorders in southern China.
  • Affiliated Hospital

Where Dr. Ren Donglin practices

Guangzhou

The Sixth Affiliated Hospital, Sun Yat-sen University

Chinese name: 中山大学附属第六医院
Founded in 1964, Sun Yat-sen University Sixth Affiliated Hospital is a Grade-A tertiary hospital renowned for gastrointestinal surgery and reproductive medicine, holding 3 national key specialties and the world's largest IBD case volume, opening 1,497 beds and ranking A+ nationally.
Since 1964
62 years of care
1,497
Licensed beds
6,415
Colorectal surgeries (2024)
1.66 million
Licensed beds
View Hospital Profile
Appointments with this physician are booked through official hospital channels only, coordinated end-to-end by Orisene.
  • WHY INTERNATIONAL PATIENTS CHOOSE CHINA

Why patients travel to China for treatment

Six reasons international patients now put China on their shortlist — from internationally aligned clinical capability to the policy channels that make treatment here genuinely reachable.

Clinical capability at international standard

Chinese hospitals deliver internationally aligned protocols, performing vast volumes of advanced robotic, minimally invasive, and complex transplant surgeries annually. This massive clinical data and highly specialized workforce ensure world-class outcomes, even for rare and complex cases.

Diagnostics and treatment in days, not months

A full medical workup that typically means months of waiting elsewhere is completed in China within 48–72 hours. Imaging, labs, and multidisciplinary consultations are integrated into a single visit, allowing treatment to commence immediately.

Transparent, itemised pricing

Chinese healthcare offers legally binding, itemised cost estimates before treatment begins, eliminating hidden fees or surprise billing. Due to national centralized procurement, total expenses remain 40–70% lower than comparable care in Western Europe or North America.

Policy channels that open the door

China facilitates access through 240-hour visa-free transit and dedicated medical visa routes. Policies like the Greater Bay Area drug pathway and Boao Lecheng’s pilot zone allow designated hospitals to administer innovative therapies not yet globally approved.
  • International Patient Guide

Consulting this physician, step by step

From the first message to the follow-up after you fly home, one coordinator, no paperwork on your side.
01
Day 0
  • Share your story
    A private consultation with an Orisene advisor, by message, phone or video. Send medical records in any language. Nothing is shared with the hospital yet.
02
Days 1–3
  • Records review & matching
    Orisene translates and presents your case to the right specialist. The hospital returns a tailored care plan, with costs itemised once that plan is confirmed.
03
Days 3–7
  • Your consultation
    Appointments are booked through official hospital channels only. Your navigator accompanies every visit with real-time interpretation, so you can focus on one thing: being cared for.
04
After you fly home
  • Reports & follow-up
    Translated reports and prescriptions delivered within days, remote follow-up coordination with your physicians at home, and a standing line to your navigator.
Orisene offers English and multilingual services, a professional medical interpreter at every consultation, plus translation of your records, reports and prescriptions.

Ready to plan your consultation with Dr. Ren Donglin?

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Contact

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Information Sources

This physician profile is compiled by the Orisene team from publicly available online sources and verified at the time of publication. Details may change, and physician availability is confirmed at the time of booking.

Disclaimer: This information is for general educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for personal medical guidance.

Mention of any specific product, brand, or manufacturer is for informational purposes only and does not constitute an endorsement or recommendation by Dr. Ren Donglin.