Treatment & Services

The Differences Between TESE & PESA Sperm Retrieval Methods

Surgical Sperm Retrieval Options for Male Infertility

At Bangkok Central Clinic, we support male patients facing infertility with advanced surgical sperm retrieval techniques:

TESE: Testicular Sperm Extraction

PESA: Percutaneous Epididymal Sperm Aspiration

These procedures are commonly recommended for men with azoospermia—a condition where no sperm is present in the ejaculate—and are used in conjunction with IVF or ICSI fertility treatments.

TESE vs. PESA: What’s the Difference?

Feature PESA (Percutaneous Epididymal Sperm Aspiration) TESE (Testicular Sperm Extraction)
Procedure Type
Needle aspiration
Small surgical biopsy
Area of Sperm Retrieval
Epididymis (where sperm is stored)
Testicle (where sperm is produced)
Anesthesia Used
Local anesthesia
General or local anesthesia
Duration of Procedure
15–30 minutes
30–60 minutes
Best For
Obstructive azoospermia (e.g. vasectomy, duct blockage)
Non-obstructive azoospermia (low or no sperm production)
Invasiveness
Minimally invasive
More invasive
Recovery Time
1–2 days (minor swelling)
2–3 days (slightly more discomfort)
Use of Retrieved Sperm
Immediate ICSI use or cryopreservation
Immediate ICSI use or cryopreservation
Success Rate
High (when obstruction is cause)
Variable (depends on sperm production capacity)

All procedures are performed by fertility specialists in a sterile, supportive environment with your safety and comfort as top priorities.

Frequently Asked Questions (FAQs)

Azoospermia is a condition where no sperm is found in the ejaculate. It can be caused by physical blockages or by problems in sperm production.

A thorough consultation with your fertility doctor, including hormone tests and ultrasound, will determine the most suitable approach based on your specific condition.

PESA is quick and typically involves very little discomfort. TESE may result in some swelling or tenderness, but pain is generally mild and temporary.

Most patients return to normal activities within 1–3 days. Avoid strenuous exercise or sexual activity for a short period, as advised by your doctor.

Yes. At Bangkok Central Clinic, retrieved sperm can be frozen and stored securely for future IVF or ICSI procedures.

While success rates are high, especially with obstructive azoospermia, sperm retrieval isn’t always guaranteed. Your doctor will explain your specific chances after diagnosis.