Treatment Overview
Gastric Sleeve Surgery, also known as Sleeve Gastrectomy, is a bariatric procedure designed to help patients achieve significant and sustainable weight loss. This surgery involves removing approximately 75–80% of the stomach, leaving a narrow, sleeve-shaped stomach that limits food intake and reduces hunger by decreasing ghrelin hormone production.
In Korea, gastric sleeve surgery is offered at specialized bariatric and digestive surgery centers using minimally invasive laparoscopic techniques. The procedure is highly effective for patients with obesity, particularly those with comorbidities such as type 2 diabetes, hypertension, or sleep apnea. Korean clinics combine advanced surgical technology, experienced surgeons, and comprehensive pre- and post-operative care to ensure optimal outcomes for both local and international patients.
Purpose & Benefits
The primary purpose of gastric sleeve surgery is to achieve significant weight reduction and improve obesity-related health conditions.
Key benefits include:
- Effective long-term weight loss
- Improvement or resolution of type 2 diabetes, hypertension, and sleep apnea
- Reduced hunger and improved satiety
- Minimally invasive approach with shorter recovery time
- Enhanced quality of life and increased mobility
- Reduced risk of obesity-related complications
Ideal Candidates
Gastric sleeve surgery is ideal for patients with:
- Body Mass Index (BMI) ≥ 35, or ≥ 30 with obesity-related health conditions
- Failed attempts at weight loss through diet, exercise, or medication
- No contraindications for surgery
- Motivation to commit to lifestyle changes post-surgery
International patients seeking effective, safe, and minimally invasive bariatric surgery can benefit from Korean expertise and comprehensive medical tourism support.
Possible Risks & Complications
Although gastric sleeve surgery is generally safe, potential risks include:
- Bleeding or infection
- Leakage from the staple line
- Nutritional deficiencies if post-operative diet is not followed
- Gastroesophageal reflux or stomach irritation
- Rare complications such as blood clots or anesthesia reactions
Korean clinics perform thorough pre-operative assessments and provide detailed instructions to minimize risks and ensure patient safety.
Techniques & Technology Used
Korean clinics utilize advanced laparoscopic techniques for gastric sleeve surgery, ensuring smaller incisions, reduced post-operative pain, and faster recovery. Some clinics may offer robotic-assisted surgery for higher precision.
Preoperative imaging, endoscopy, and nutritional counseling are standard procedures. Postoperative follow-up includes diet planning, lab tests, and monitoring for any complications, ensuring holistic care.
Treatment Process in Korea
- Consultation & Assessment: Review of medical history, BMI evaluation, and pre-operative testing.
- Pre-Operative Preparation: Nutritional counseling, lab tests, and lifestyle guidance.
- Surgery: Laparoscopic removal of the majority of the stomach, leaving a narrow sleeve. The procedure typically takes 1–2 hours.
- Hospital Stay: Most patients stay 2–4 days for monitoring and early mobilization.
- Postoperative Care: Diet progression from liquids to solids, follow-up appointments, and lifestyle counseling.
Korean clinics provide international patient coordinators to assist with travel, hospital admission, and post-operative care.
Recovery & After-Care
Recovery typically involves:
- Mild pain and discomfort managed with medications
- Gradual return to daily activities within 1–2 weeks
- Strict adherence to dietary guidelines and portion control
- Regular follow-up to monitor weight loss, nutritional status, and health improvements
Patients are encouraged to incorporate physical activity gradually and maintain long-term lifestyle changes for optimal outcomes.
Results & Longevity
Patients can expect:
- Significant weight loss of 50–70% of excess body weight within 12–18 months
- Improvement in obesity-related conditions, including diabetes, hypertension, and sleep apnea
- Long-term health benefits if lifestyle changes are maintained
- Enhanced quality of life, energy levels, and mobility
Results may vary based on adherence to diet, exercise, and follow-up care.
Why Korea Is a Top Destination
Korea is renowned for high-quality medical care, advanced laparoscopic and robotic surgery technologies, and experienced bariatric surgeons. Clinics provide comprehensive pre- and post-operative care, as well as personalized treatment plans.
Medical tourists benefit from transparent pricing, short waiting times, international patient coordinators, and high success rates. Korea’s focus on safety, innovation, and patient-centered care makes it a preferred destination for gastric sleeve surgery.
Cost Range
The cost of gastric sleeve surgery in Korea varies depending on hospital, surgeon experience, and facilities used. On average, prices range from USD 7,000 to USD 12,000 for the complete procedure, including surgery, hospital stay, and basic post-operative care.
Korea offers high-quality bariatric surgery at competitive rates compared to Western countries, providing excellent value for international patients.
Popular Clinics in Korea
Leading bariatric surgery centers are located in Seoul, Gangnam, Busan, and Incheon. These clinics offer English-speaking coordinators, comprehensive patient support, and advanced surgical facilities. Popular clinics include:
- Seoul National University Hospital Bariatric Center
- Samsung Medical Center Bariatric Surgery Clinic
- Asan Medical Center Obesity Surgery Department
- Gangnam Severance Hospital Bariatric Clinic
These centers are equipped with minimally invasive surgery technology and provide personalized international patient services.



