MALE FERTILITY CARE
Sperm retrieval techniques: PESA, TESA, TESE and MESA
Sperm may be retrieved from the epididymis or testis when it is not available in the ejaculate or collection is not possible. The technique must match the suspected cause and be coordinated with the IVF/ICSI laboratory.
Cause-directed evaluation
History, examination, hormones, genetics and semen findings guide the plan.
Laboratory coordination
Retrieval timing, freezing and ICSI are planned together.
Contingency planning
The possibility of finding no usable sperm is discussed before treatment.
TECHNIQUES ARE NOT INTERCHANGEABLE
How retrieval options differ
The choice depends on whether azoospermia is obstructive or non-obstructive, prior surgery, anatomy, genetic findings and the planned use of sperm.
PESA
Percutaneous aspiration from the epididymis, commonly considered in selected obstructive situations.
TESA
Needle aspiration from the testis; its role depends on diagnosis and local laboratory planning.
TESE or micro-TESE
Tissue retrieval, sometimes using microsurgical search, may be considered for selected testicular sperm-production problems.
MESA
Microsurgical epididymal aspiration may be considered when a larger or carefully collected sample is needed in selected obstructive cases.
COORDINATED CARE
Before, during and after retrieval
Complete the male evaluation
Confirm the likely cause and whether genetics or additional counseling is indicated.
Choose the retrieval plan
Discuss technique, anesthesia, discomfort, bleeding, infection and recovery.
Coordinate with IVF/ICSI
Align retrieval, egg collection, laboratory handling, freezing and backup samples.
Review the result
Document whether usable sperm was found and what the result means for current or future treatment.
DECISION SUPPORT
Retrieval is one part of treatment
Finding sperm does not establish its ability to fertilize an egg or produce a developing embryo. Many retrieved samples are used with ICSI, and the laboratory strategy should be discussed before the procedure.
- Ask why a specific retrieval technique fits the suspected diagnosis.
- Confirm whether fresh use, freezing or both are planned.
- Discuss what happens if no usable sperm is found.
Important limitation: No retrieval method guarantees that sperm will be found, that fertilization will occur or that an embryo will implant. Risks and alternatives must be individualized.
Coordinate the male evaluation before IVF travel
Send semen analyses, hormone results, genetic reports and previous surgical records so the team can identify the consultations still required.
