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Dr. Nguyen Manh Hai

Dr. Nguyen Manh Hai

Gastrointestinal Surgeon ·
, Ha noi, Vietnam

19 Years of experience ·
Languages Spoken: English, Vietnamese

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Specialises in:

Oesophageal disorders: inflammation, spasm, reflux, oesophageal cancerStomach conditions: ulcers, reflux, haemorrhage, stomach cancerSmall intestine diseases: inflammation, perforation, obstruction, tumoursColon and large intestine: inflammation, polyps, volvulus, colon cancer

About Dr. Nguyen Manh Hai

  • Assoc. Prof. Level II Specialist Nguyen Manh Hai is a highly experienced gastrointestinal surgeon currently practising at the Department of General Surgery & Anesthesiology, Vinmec Hai Phong International Hospital.
  • With 19 years of expertise in general surgery and oncology, he specialises in the diagnosis, management, and surgical treatment of a wide range of gastrointestinal disorders, including complex digestive tract cancers.
  • Dr Hai completed his medical education and extensive surgical training at prestigious institutions such as Hanoi Medical University, Viet Duc Hospital, National Cancer Hospital (K Hospital), Bach Mai Hospital, National Hospital of Endocrinology, and Thai Nguyen University of Medicine and Pharmacy.
  • His comprehensive training encompasses general surgery, digestive oncology, thyroid and salivary gland tumor surgery, gastric and colorectal cancer surgery, anorectal surgery, and advanced diagnostic and interventional endoscopy of the digestive tract.
  • Throughout his career, he has held key leadership positions, including Deputy Head of Surgery Department and Gastroenterologist at Vinmec Ha Long International Hospital, Deputy Head of General Surgery Department and Head of Digestive and Urology Department at Yen Binh General Hospital, and clinical roles at Thai Nguyen C Hospital, where he worked as an Oncology Doctor and a Digestive Surgery Department physician.
  • In addition to his clinical expertise, Dr Hai contributes as a medical advisor for health articles on the Vinmec platform, sharing accurate and practical medical knowledge with the community.
  • He is recognised for his proficiency in both open and minimally invasive gastrointestinal surgeries, as well as his commitment to advancing gastrointestinal oncology care in Vietnam.

Conditions treated by Dr Nguyen Manh Hai

  • Oesophageal disorders: inflammation, spasm, reflux, oesophageal cancer
  • Stomach conditions: ulcers, reflux, haemorrhage, stomach cancer
  • Small intestine diseases: inflammation, perforation, obstruction, tumours
  • Colon and large intestine: inflammation, polyps, volvulus, colon cancer

Area of Interest

  • Gastrointestinal surgery
  • Digestive tract oncology and minimally invasive procedures

Qualification

  • General Practitioner, Thai Nguyen University of Medicine (2000–2006)
  • Specialist I in General Surgery, Viet Duc Hospital – Hanoi Medical University (2010–2012)
  • Specialist II in Surgery, Thai Nguyen University of Medicine and Pharmacy(2020–2022)
  • Additional specialised training in anorectal surgery, gastric and colorectal cancer surgery, thyroid and salivary gland tumour surgery, and diagnostic/interventional endoscopy.

Work Experiences

  • From 2021 to August 2023, Dr Nguyen Manh Hai served as the Deputy Head of the Surgery Department and worked as a Gastroenterologist at Vinmec Ha Long International Hospital.
  • Between 2018 and 2021, he held the position of Deputy Head of the General Surgery Department and Head of the Digestive and Urology Department at Yen Binh General Hospital in Thai Nguyen.
  • From 2015 to 2018, he worked as an Oncology Doctor at Thai Nguyen C Hospital.
  • Before that, from 2006 to 2015, he served as a Doctor in the Digestive Surgery Department at Thai Nguyen C Hospital.

Certifications (3)

  • Certification for Specialists I and II in Surgery
  • Certified in digestive tract diagnostic and interventional endoscopy
  • Specialised training in thyroid, salivary gland, gastric, colorectal, and anorectal surgeries

Memberships (1)

  • Vietnam Association of Surgeons

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Procedures Performed

Adhesion Lysis
Cardiomyotomy
Esophagectomy
Foregut Surgery
Hepatectomy (Liver Resection)
Hiatal Hernia Repair
Ileoanal Anastomosis (J-Pouch) Surgery
Laparoscopic Colon Resection
Laparoscopic Ventral Hernia Repair
Low Anterior Resection
Meckel's Diverticulectomy Treatment
Nissen Fundoplication
Pancreatectomy
Pancreatic Surgery
Partial Colectomy
Proctectomy
Rectal Polyp Removal
Retroperitoneum Surgery
Robotic Hernia Surgery
Small Bowel Resection
Small Intestine Cancer Treatment
Splenectomy
Stapled Hemorrhoidopexy
Stomach Cancer Treatment
Subtotal Proctocolectomy
Total Colectomy

Frequently Asked Questions

Gastrointestinal surgery is a branch of surgery focused on the diagnosis, treatment, and surgical management of conditions affecting the digestive tract, including the oesophagus, stomach, small intestine, colon, rectum, liver, pancreas, and gallbladder.

Gastrointestinal surgeons treat conditions such as digestive tract cancers (stomach, colon, oesophagus), ulcers, gastrointestinal bleeding, bowel obstruction, inflammatory bowel disease, hernias, and polyps, among others.

Standard procedures include tumour removal, resection of affected sections of the digestive tract, minimally invasive laparoscopic surgery, endoscopic procedures, hemorrhoidectomy, and surgeries for gallstones or appendicitis.

Minimally invasive surgery involves using small incisions, cameras, and specialised instruments to perform surgeries with reduced recovery time, less pain, and minimal scarring compared to traditional open surgery.

Preparation may include preoperative consultations, blood tests, imaging studies, bowel preparation if necessary, and fasting for a specific period before surgery.

Recovery time varies depending on the procedure and patient health but typically ranges from a few days for minor procedures to several weeks for major surgeries. Minimally invasive procedures usually have shorter recovery periods.

Yes, gastrointestinal surgeons play a key role in diagnosing, staging, and surgically treating digestive system cancers. They often work alongside oncologists, gastroenterologists, and radiologists for comprehensive care.

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Dr. Vishwas Kaushik
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Last Reviewed - June 2026

Dr. Vishwas Kaushik is a qualified medical professional holding an MBBS from the prestigious Belgorod State University, Russia, with a strong foundation in clinical medicine and healthcare practice. His comprehensive medical training has equipped him with a profound understanding of evidence-based clinical practices, patient-centered care, and the evolving landscape of modern medicine. With a keen interest in medical research and scientific communication, he consistently translates complex clinical concepts into clear, accurate, and accessible content for diverse audiences. His work reflects a deep commitment to advancing medical knowledge, delivering impactful healthcare insights, and bridging the gap between clinical expertise and accessible medical communication.
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Pragun Gupta is a Doctor of Pharmacy (Pharm. D.) professional from Teerthanker Mahaveer University with hands-on experience in clinical pharmacology, clinical research, and evidence-based medical writing. Through her clinical and research exposure, she has developed a strong interest in pharmacoeconomics, pharmacology, therapeutics, and pharmacovigilance.

As a medical writer, she works on medical and scientific research articles, patient education materials, and healthcare-focused content. Her clinical research and evidence-based writing experience enables her to translate complex medical information into clear, accurate, patient-friendly content while maintaining scientific credibility and medical accuracy. Her primary aim is to make healthcare information accessible and easy for patients and general readers to understand.

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