Azoospermia Treatment in Istanbul: Micro-TESE and ICSI
Manar Hegazy
Majd Eddin Khaled
Azoospermia on a semen analysis does not automatically mean that biological fatherhood is impossible. It does, however, require a careful diagnosis before proceeding to IVF or Micro-TESE.
The word azoospermia alone does not explain why sperm are absent from the ejaculate. Sperm production may be present but blocked, or sperm production itself may be severely impaired.
That distinction affects the investigations required, the sperm-retrieval method, procedure timing, and how the female partner's IVF cycle should be coordinated.
Fertiliv helps couples coordinate male-factor assessment, reproductive urology, IVF planning, and embryology so the female partner's stimulation is not started without a clear sperm strategy.
What Is Azoospermia?
Azoospermia means that sperm are not detected in the ejaculate following appropriate laboratory examination.
Before confirming the diagnosis, testing needs to be performed correctly.
For non-obstructive azoospermia, current European guidance recommends confirmation on two consecutive semen analyses with examination after centrifugation, partly to distinguish true azoospermia from cryptozoospermia, where extremely rare sperm may still be present.
A single semen analysis should therefore not automatically lead to surgery.
1. Obstructive vs Non-Obstructive Azoospermia
Obstructive Azoospermia
Sperm production is present, but an obstruction prevents sperm from reaching the ejaculate.
Possible causes include:
Congenital obstruction
Absence of the vas deferens
Previous surgery
Infection
Trauma
Epididymal or duct obstruction
Non-Obstructive Azoospermia
The primary problem involves sperm production within the testes or, in selected cases, hormonal regulation of spermatogenesis.
The distinction between obstructive and non-obstructive azoospermia is central to the male infertility work-up.
2. Which Tests May Be Needed Before Micro-TESE?
Assessment may include:
Repeat semen analysis
Male-fertility or urological examination
FSH
LH
Total testosterone
Prolactin when appropriate
Estradiol in selected cases
Scrotal ultrasound when indicated
Karyotype
Y-chromosome microdeletion testing
Additional targeted genetic testing when appropriate
In NOA, guidelines recommend a comprehensive evaluation including medical history, hormonal profile, genetic tests, and scrotal ultrasound as appropriate.
3. Why Is Genetic Testing Important Before Micro-TESE?
Some causes of azoospermia are genetic or chromosomal.
The result can affect:
Expected sperm-retrieval potential
Whether surgery is worthwhile
Need for genetic counseling
IVF planning
Counseling regarding potential transmission risks
For example, European guidelines recommend against surgical sperm retrieval in men with complete AZFa or AZFb microdeletions because the probability of finding sperm is effectively zero.
Genetic testing can therefore prevent an unnecessary surgical procedure in selected cases.
4. Does Every Man With Azoospermia Need Micro-TESE?
No.
The appropriate method depends on the cause.
In obstructive azoospermia, options may include:
PESA
TESA
TESE
MESA
Microsurgical reconstruction in selected cases
For non-obstructive azoospermia, Micro-TESE is used to search more carefully through testicular tissue for focal areas of sperm production.
European guidance identifies microdissection TESE as the preferred retrieval approach in NOA compared with aspiration techniques.
5. What Is Micro-TESE?
Micro-TESE means microdissection testicular sperm extraction.
A reproductive urologist uses an operating microscope to inspect testicular tissue and selectively sample tubules that appear more likely to contain spermatogenesis.
The embryology laboratory then examines the samples for sperm.
The procedure is therefore different from simply aspirating tissue with a needle.
6. Does Micro-TESE Guarantee Sperm Retrieval?
No.
In NOA, sperm retrieval cannot be guaranteed before surgery.
Hormones, testicular size, genetics, and imaging can help characterize the condition, but none can reliably predict a positive retrieval result in every patient.
Current European guidance notes that definitive preoperative predictors of successful sperm retrieval in NOA have not been established.
7. What Happens If Sperm Are Found?
When usable sperm are identified, they can be used with ICSI.
Surgically retrieved sperm may be extremely limited in number, so conventional IVF is generally not the practical fertilization method in this setting.
With ICSI, an embryologist injects a selected sperm directly into a mature egg.
Finding sperm does not guarantee fertilization or embryo development, because the outcome also depends on the eggs and other biological factors.
8. Should Micro-TESE Be Done Before the Female IVF Cycle or on Retrieval Day?
This is one of the most important coordination decisions.
Option One: Micro-TESE Before the Female Cycle
Sperm are retrieved first and frozen if found.
Potential advantage:
The couple knows that a sperm sample exists before ovarian stimulation begins
It reduces the risk of completing ovarian stimulation and egg retrieval without sperm available
However, the team also needs to consider the amount of sperm and how well the sample may tolerate freezing and thawing.
Option Two: Micro-TESE Around Egg Retrieval
The male procedure is coordinated close to the female partner's oocyte retrieval so fresh sperm may be used if found.
A potential advantage is avoiding pre-use cryopreservation.
The logistical risk is greater:
What happens if no sperm are found after the female partner has already undergone stimulation and egg retrieval?
The decision should therefore involve the reproductive urologist, IVF physician, and embryology laboratory.
9. Is Fresh Sperm Always Better Than Frozen Sperm?
No universal rule applies.
Fresh sperm may be preferred in selected cases where the available number is extremely limited.
However, pre-freezing sperm can provide much greater certainty before the female partner begins ovarian stimulation.
The decision depends on:
Sperm number
Motility
Sample quality
Previous successful cryopreservation
Male partner availability
Embryologist assessment
Likelihood of requiring repeat retrieval
10. What If Frozen Micro-TESE Sperm Already Exist?
The team should review:
Storage location
Number of stored units
Embryology report
Whether motile sperm were identified
Sample quality
Whether some material has already been used
Whether the remaining material is likely to be adequate
In selected cases, the laboratory may recommend a backup fresh retrieval if the stored sample is extremely limited.
11. Can Surgically Retrieved Sperm Be Frozen?
Yes, when suitable sperm are found.
However, freezing does not guarantee that every sperm will remain usable after thawing, particularly when numbers are extremely low.
When possible, the laboratory may divide the sample into multiple storage units to avoid thawing the entire supply at once.
12. What If Only a Few or Non-Motile Sperm Are Found?
In some cases, ICSI may still be possible with very small numbers of sperm.
Usability depends on:
Viability
Number
Motility
Embryology assessment
Laboratory ability to distinguish viable from non-viable sperm
A report saying simply “sperm found” is not enough. The important question is whether the sample is actually usable for ICSI.
13. What Happens If No Sperm Are Found?
This possibility should be discussed before ovarian stimulation begins.
The team may review:
Whether repeat retrieval has any realistic value
Whether a previous Micro-TESE was performed appropriately
Genetic findings
Potentially modifiable factors
Whether the female partner's eggs can be frozen if retrieval has already occurred and no sperm are available
Treatment in Turkey must also remain within applicable legal requirements regarding use of the married couple's own gametes.
14. Can the Female Partner's Eggs Be Frozen If No Sperm Are Available?
In selected situations, mature eggs may be vitrified rather than losing the opportunity to use them.
The decision depends on:
Egg maturity
Laboratory plan
Couple consent
When the lack of sperm becomes known
The future male treatment strategy
This is why a written backup plan before oocyte retrieval is valuable.
15. Why Is Timing the Female Cycle So Important?
Ovarian stimulation involves medication, monitoring, and egg retrieval.
In severe male-factor cases, the female cycle should not be planned independently from the sperm-retrieval strategy.
Before stimulation, the team should know:
Will frozen sperm be used?
Is a new retrieval planned?
On which day?
Which retrieval method?
Who will perform it?
Where?
What is the backup plan if no sperm are found?
16. Does the Male Partner Need to Stay in Istanbul Throughout IVF?
Not necessarily.
If sufficient frozen sperm are already confirmed, he may not need to remain for the entire stimulation period.
If the plan depends on:
Fresh Micro-TESE
TESA or PESA near retrieval
Additional urology assessment
his travel needs to be coordinated carefully.
Read Does the Husband Need to Travel to Istanbul for IVF?.
17. Can Hormone Levels Predict Micro-TESE Success?
Hormone testing can help characterize testicular function and the likely cause.
For example, FSH may be elevated in some cases of impaired spermatogenesis.
However, hormone levels alone cannot determine whether focal sperm production exists within the testes.
A high FSH does not automatically mean Micro-TESE will fail, and a normal FSH does not guarantee success.
18. Can Hormonal Treatment Improve the Chance of Finding Sperm?
That depends on the cause.
Men with hypogonadotropic hypogonadism may benefit substantially from hormonal therapy designed to stimulate spermatogenesis.
However, for primary testicular failure and NOA, evidence is insufficient to recommend routine hormonal stimulation before TESE. European guidelines advise against routine pre-TESE hormonal stimulation in NOA outside clinical trials.
19. What About Testosterone Treatment?
Exogenous testosterone can suppress the hormonal signals needed for sperm production.
It should therefore not be used as a fertility treatment in men actively trying to conceive.
European guidance states that testosterone therapy is contraindicated as treatment for male infertility in men seeking fertility.
Tell the male-fertility specialist about testosterone injections, gels, or anabolic steroid use before planning sperm retrieval.
20. What If TESE or Micro-TESE Was Performed Before?
Provide:
Operative report
Which side was explored
Procedure type
Pathology report if available
Embryology report
Whether sperm were found
Whether sperm were frozen
Whether they were used
Fertilization and embryo outcomes
Repeat surgery should not be planned without understanding the previous procedure.
21. Can Micro-TESE Be Repeated?
In selected patients, yes.
The decision depends on:
Cause of azoospermia
Previous retrieval findings
Genetic results
Previous tissue sampling
Testicular condition
Time since surgery
Reproductive urology assessment
When genetic findings indicate essentially no retrieval potential, repeat surgery is not appropriate.
22. What Is the Difference Between Micro-TESE, TESA, PESA, and TESE?
PESA
Percutaneous epididymal sperm aspiration.
Often considered in selected obstructive cases.
TESA
Testicular sperm aspiration with a needle.
It may be used in selected situations but is not the preferred technique for severe NOA.
TESE
Surgical testicular tissue extraction.
Micro-TESE
Microsurgical exploration of the testis to identify areas more likely to contain sperm production.
These procedures should not be treated as interchangeable.
23. Why Is TESA Not the First Choice for NOA?
In NOA, sperm production can be focal and patchy.
A blind needle aspiration can miss those small areas.
European guidelines note that TESA and fine-needle aspiration have lower retrieval rates than TESE in NOA and recommend against TESA or FNA as retrieval techniques for NOA.
24. How Is the Female IVF Cycle Coordinated With Micro-TESE?
A practical pathway may be:
1. Male evaluation
Confirm azoospermia and determine OA versus NOA.
2. Hormonal and genetic testing
When indicated.
3. Female evaluation
Age, AMH, AFC, uterine assessment, reproductive history.
4. Sperm strategy
Pre-retrieval and freezing versus fresh retrieval near OPU.
5. Female stimulation
After the male plan is clear.
6. Egg retrieval
7. Fresh sperm retrieval or thawing stored sperm
8. ICSI
9. Embryo culture
10. Transfer or embryo freezing according to the treatment plan
25. Does IVF With Micro-TESE Require Freeze-All?
Not automatically.
If sperm are found, embryos develop, and the female partner's condition and endometrium are suitable, different transfer strategies may be possible.
Freeze-all may be used when:
Female medical factors require it
PGT is planned
Transfer needs to be delayed
A separate transfer cycle is preferred
Micro-TESE itself does not automatically require embryo freezing.
26. Is PGT Needed in Azoospermia Cases?
Not every azoospermia case requires PGT.
However, when male genetic testing identifies a relevant abnormality, genetic counseling becomes important before proceeding with ICSI.
European guidance recommends genetic counseling for couples with identified genetic abnormalities before assisted reproduction.
Read IVF with PGT-A and PGT-M in Istanbul.
27. What Does IVF With Micro-TESE Cost in Istanbul?
The budget has two main components.
IVF Treatment
The current basic IVF/ICSI program with fresh transfer is approximately USD 3,700 cash, while freeze-all follows a different structure.
Sperm Retrieval
Current Micro-TESE cost is approximately:
USD 2,000
TESA/PESA currently cost approximately:
USD 1,900
Medication, freezing, storage, and additional testing are charged separately when applicable.
Read IVF Cost in Turkey 2026.
28. What Should Couples Ask Before Starting?
Ask:
Has azoospermia been confirmed on two analyses?
Is it obstructive or non-obstructive?
Is karyotype or Y-chromosome testing required?
Is there any genetic result making Micro-TESE futile?
Which retrieval method is appropriate?
Will retrieval happen before the female cycle or on OPU day?
Will sperm be frozen if found?
Is any existing frozen sample adequate?
What happens if no sperm are found?
Would eggs be frozen if sperm are unavailable?
Could repeat retrieval be needed?
Would hormonal treatment help?
Is the male partner using testosterone or anabolic steroids?
When does he need to travel?
Who coordinates urology, embryology, and IVF timing?
29. What Information Should You Prepare Before Traveling?
Useful records include:
Previous semen analyses
Hormonal results
Karyotype
Y-chromosome microdeletion results
Other genetic reports
Previous surgical reports
Prior TESE or Micro-TESE reports
Embryology sperm-retrieval report
Frozen-sperm storage information
Previous IVF results
Fertilization and embryo-development records
The female partner's ovarian reserve and reproductive history should be evaluated at the same time.
30. What Is the Biggest Planning Mistake?
The biggest mistake is treating azoospermia as a problem belonging only to the male partner and starting the female IVF cycle without a coordinated plan.
The two pathways need to move together:
The male sperm-retrieval plan + the female egg-retrieval plan.
Without coordination, the couple can reach oocyte retrieval day without a clear sperm strategy.
Conclusion
Azoospermia is not one diagnosis with one treatment. Distinguishing obstructive from non-obstructive azoospermia determines the appropriate investigations, sperm-retrieval method, and whether Micro-TESE is appropriate at all.
For NOA, Micro-TESE may provide an opportunity to find focal sperm production, but retrieval cannot be guaranteed. The female IVF cycle should therefore begin only after the couple understands whether retrieval will happen first or around egg collection, whether sperm will be frozen, and what the backup plan is if no usable sperm are found.
Frequently Asked Questions: IVF and Micro-TESE in Istanbul for Azoospermia Treatment
Does Azoospermia Mean Biological Fatherhood Is Impossible?
No. The underlying cause must first be identified, and sperm can sometimes be surgically retrieved for ICSI.
Does Every Man With Azoospermia Need Micro-TESE?
No. The appropriate retrieval method depends on whether the azoospermia is obstructive or non-obstructive.
Does Micro-TESE Guarantee Sperm Retrieval?
No. Retrieval cannot be guaranteed in non-obstructive azoospermia.
Should Micro-TESE Be Done Before the Female Partner Starts Stimulation?
Sometimes this provides more certainty, while other cases may favor fresh retrieval near egg collection.
What Happens If No Sperm Are Found on Egg-Retrieval Day?
A backup plan should already exist and may include egg freezing in selected cases.
Can Frozen Micro-TESE Sperm Be Used?
Yes, when usable sperm have been successfully cryopreserved and remain viable after thawing.
Does a High FSH Mean Micro-TESE Will Fail?
No. Hormone levels help characterize the condition but cannot reliably predict sperm retrieval on their own.