- Diploma of the Thai Board of General Surgery, 1977
- Diploma of the Thai Board of Urology, 1985
- Pediatric Urology, Alder Hey Children's Hospital, Liverpool, UK, 1979-1980
- Urology, St. Woolos Hospital, Newport, UK, 1981-1982
- Reconstruction, Cancer, BPH, Stones, Pediatric Urology