Bariatric surgery in China has matured rapidly. Here is the comparative landscape across the three main procedures, what they cost, and how outcomes compare to international benchmarks.
All-in pricing at Class A bariatric centres in China for international patients (procedure + 5-day admission + standard pre/post-op care):
The Procedures and Their Place in 2026
- Sleeve gastrectomy (SG): the most-performed bariatric procedure globally; technically simpler, faster recovery
- Roux-en-Y gastric bypass (RYGB): longer-evidence procedure with strong durability; more complex anatomy
- Single-anastomosis duodeno-ileal bypass (SADI / SADI-S): emerging procedure with weight-loss outcomes between SG and RYGB; growing adoption
- One-anastomosis gastric bypass (OAGB / mini-bypass): simpler than RYGB, common in some regions
Cost Comparison at Class A Centres
All-in pricing at Class A bariatric centres in China for international patients (procedure + 5-day admission + standard pre/post-op care):
- Sleeve gastrectomy: USD 9,500–14,000
- Roux-en-Y gastric bypass: USD 11,500–16,500
- SADI-S: USD 13,000–18,000
- OAGB: USD 10,500–15,000
For comparison, US private-pay sleeve gastrectomy typically runs USD 18,000–28,000, RYGB USD 24,000–35,000.
Outcomes
Published Chinese academic centre outcomes data show:
- Average percentage excess weight loss (%EWL) at 12 months: SG 60–70%, RYGB 65–75%, SADI 70–80%
- 30-day major complication rates at Class A centres consistent with international benchmarks (under 3% for SG, under 5% for RYGB)
- Type 2 diabetes remission rates at 12 months: SG 50–60%, RYGB 65–75%, SADI 80%+
The Pre-Operative Workup
A typical pre-bariatric workup at a Class A centre includes:
- Multidisciplinary evaluation: surgeon + endocrinologist + dietitian + sometimes psychiatrist
- Comprehensive labs: HbA1c, fasting insulin, lipid panel, liver function, vitamin D, B12, ferritin, iron, calcium
- Upper GI endoscopy + H. pylori testing
- Cardiac clearance (ECG, sometimes echocardiogram)
- STOP-Bang sleep apnoea screening with low threshold for PSG referral
- Imaging of upper abdomen / liver if MASLD suspected
Workup block: typically USD 600–1,200 all-in, often included in the procedure quote.
Length of Stay and Recovery
Plan for 12–18 days in country: 3–4 days pre-op workup and clearance, 5 days inpatient post-op, 4–6 days outpatient recovery before flight. Long-haul flights are typically permitted at day 10–14 post-op with surgeon clearance.
Should You Consider Surgery vs Medication?
For BMI ≥ 35 with comorbidities or BMI ≥ 40, surgery has the strongest long-term durability evidence. For BMI 30–35 without significant comorbidity, GLP-1 medication is typically first-line. Take our weight loss self-assessment for a structured candidacy band that distinguishes the two paths.
Sources: ASMBS / IFSO bariatric outcomes data; published Chinese academic bariatric registries; partner-hospital pricing 2026.