| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 5.0 / 5 (9 reviews) | Seoul, Republic of Korea | 47+ years | MRI of one area, Consultation with a proctologist | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | ||
| #2 | 4.8 / 5 (6 reviews) | Seoul, Republic of Korea | — | 32,000+ treatments | Gastroenterological Check-Up, Male Check-up | — | — | Global Healthcare Accreditation Program, World's Best Hospitals 2021 by Newsweek | |
| #3 | 4.8 / 5 (4 reviews) | Incheon, Republic of Korea | — | — | CT (computer tomography), Ultrasound | — | — | World's Best Hospitals 2021 by Newsweek | |
| #4 | 4.5 / 5 (7 reviews) | Seoul, Republic of Korea | — | 65,000+ treatments | Stomach resection, Male Check-up | — | — | International Organization for Standardization, Korean Institute for Healthcare Accreditation | |
| #5 | 5.0 / 5 (2 reviews) | Seoul, Republic of Korea | — | — | Ultrasound, CT (computer tomography) | — | — | World's Best Hospitals 2021 by Newsweek | |
| #6 | 5.0 / 5 (1 review) | Seoul, Republic of Korea | — | Consultation with a proctologist, Ultrasound | — | — | World's Best Hospitals 2021 by Newsweek, World's Best Smart Hospitals 2021 by Newsweek |