Prostate Evaluation
I went in for prostate evaluation after experiencing urinary issues. Dr. Big explained everything clearly and walked me through the options without rushing.
Richard P. (UK)
Meet DR. Big
Book a ConsultationDr. Cheevathun Theeraratvarasin (Big), M.D.
Urologist & Prostate Care Specialist in Bangkok(7+ years clinical experience)
Dr. Cheevathun is a board-certified urologist trained at Siriraj Hospital, Mahidol University. With over 7 years of experience in urology and strong exposure to surgical patient care, he specializes in prostate disease evaluation, minimally invasive urologic procedures, and structured men’s sexual health management.
He provides professional, discreet, and patient-centered care designed to deliver safe and measurable outcomes.
Medical Specialties
Urology Consultation
Erectile Dysfunction Treatment
Prostate Disease Management
STD Services & PrEP/PEP
Androgen & Hormone Health
Clinical expertise
Dr. Cheevathun focuses on comprehensive urological evaluation and structured treatment planning tailored to each patient’s condition.
His areas of expertise include:
Urological consultation and surgical management
Prostate disease evaluation and treatment
Minimally invasive urologic procedures
Erectile dysfunction assessment and care
PrEP/PEP consultation and STI screening
Androgen deficiency and hormone health optimization
He emphasizes precise diagnosis, transparent communication, and individualized treatment strategies to ensure safe and effective care.
Education & Certifications
Dr. Cheevathun earned his Doctor of Medicine (M.D.) from the Faculty of Medicine, Siriraj Hospital, Mahidol University in 2017.
He completed his board certification in Urological Surgery at the Faculty of Medicine, Siriraj Hospital, Mahidol University in 2024. His specialist training included advanced surgical techniques, prostate disease management, and minimally invasive urologic procedures.
Siriraj Hospital is one of Thailand’s most prestigious medical institutions, recognized for rigorous clinical training and academic excellence.
REAL EXPERIENCES FROM DR. BIG'S PATIENTS
Every consultation is structured and personal. From prostate disease evaluation and minimally invasive procedures to erectile dysfunction management, patients value Dr. Big’s clarity, professionalism, and respectful approach. Here’s what they say about their experience.
Top reviews
4.9/5 on 
Professional Surgical Care
The consultation was thorough and very structured. I left understanding my condition and the next steps clearly.
Chen W. (Singapore)
Clear Post-Treatment Guidance
The follow-up instructions were detailed and easy to follow. I felt supported even after leaving the clinic.
Faisal H. (UAE)
Minimally Invasive Procedure
My minimally invasive procedure was smooth and well organized. The recovery was faster than I expected.
Krit N. (Thailand)
Erectile Dysfunction Support
I consulted Dr. Big for erectile dysfunction. He reviewed my overall health first before discussing treatment options.
Nicholas G. (USA)
Practical Treatment Plan
He provided a realistic treatment plan and didn’t overpromise results. That honesty made a difference.
Takumi Y. (Japan)
Structured Consultation
The consultation was thorough and very structured. I left understanding my condition and the next steps clearly.
Samuel T. (Australia)
Respectful & Judgment-Free
I was worried about discussing sensitive issues, but the consultation felt comfortable and respectful.
Marco L. (Italy)
Preventive Men’s Health
I visited for preventive screening and was impressed by how carefully everything was explained.
Vincent C. (Hong Kong)
Video
MEET Dr. Cheevathun Theeraratvarasin (Big), M.D.
“Clear understanding leads to better outcomes. My role is to evaluate carefully, explain honestly, and guide each patient toward the most appropriate solution.”
Dr. Cheevathun focuses on structured urological evaluation, prostate disease management, and minimally invasive surgical care, delivered in a professional and discreet medical environment.
PRECISION UROLOGY. STRUCTURED CARE.
PRECISION UROLOGY.
STRUCTURED CARE.
