What Is TESE (Testicular Sperm Extraction)?
Testicular sperm extraction (TESE) is a specialized surgical procedure designed to retrieve sperm directly from the testicles in men who lack sperm in their ejaculate—a medical condition known as azoospermia. TESE is a crucial intervention for male infertility, primarily when other standard sperm retrieval or assisted reproduction methods are not possible due to either a blockage in the male reproductive tract (obstructive azoospermia) or severe impairment of testicular sperm production (non-obstructive azoospermia).
Modern versions of TESE, including microdissection TESE (micro TESE), use a surgical microscope to improve sperm retrieval rates while minimizing testicular tissue damage. The sperm retrieved through TESE are typically used in advanced assisted reproductive technologies such as intracytoplasmic sperm injection (ICSI) during in vitro fertilization (IVF), offering many men a viable route to biological fatherhood.
Key Point: TESE represents one of the most important advances in managing severe male infertility, especially when previous efforts to obtain sperm have not succeeded.
Key Takeaways
- Testicular sperm extraction (TESE) is a surgical procedure to retrieve sperm directly from the testicle, most often used when no sperm are found in the semen.
- TESE is mainly indicated for azoospermia, whether caused by a physical blockage (obstructive) or impaired sperm production (non-obstructive).
- Microdissection TESE (micro TESE) uses a surgical microscope to find areas in the testicle most likely to contain sperm, maximizing success and reducing tissue damage.
- Sperm collected via TESE is usually used for ICSI in IVF, giving men with severe infertility a chance at biological parenthood.
- Risks include bleeding, infection, and—in rare cases—reduced testicular function, but serious complications are uncommon in experienced hands.
- TESE success rates depend on the cause of infertility and the surgical technique, with micro TESE showing higher retrieval rates in difficult cases.
- Comprehensive medical, hormonal, and genetic evaluations are critical before TESE to optimize outcomes and identify risks for both partners.
- TESE can be repeated if the first attempt is unsuccessful, and the procedure may be synchronized with a partner’s IVF cycle.
- Alternative options include donor sperm, adoption, vasectomy reversal, or other sperm retrieval methods if TESE is not effective or not appropriate.
- Open communication with fertility specialists is essential for making informed decisions and understanding the full implications and outcomes of TESE.
Table of Contents
- What Is TESE (Testicular Sperm Extraction)?
- Why Is TESE Performed in Male Infertility?
- How Is the TESE Procedure Done?
- What Are the Different Types of TESE Surgery?
- How Should Men Prepare for TESE?
- What Are the Risks and Complications of TESE?
- How Is Recovery After TESE Managed?
- What Are Typical Success Rates for TESE?
- How Does TESE Compare to Other Sperm Retrieval Techniques?
- Frequently Asked Questions About TESE
- References and Further Reading
- Disclaimer
Why Is TESE Performed in Male Infertility?
Testicular sperm extraction plays a pivotal role in managing severe male infertility, particularly for men diagnosed with azoospermia—the absence of sperm in the ejaculate. Approximately 1% of all men and up to 15% of infertile men are found to have azoospermia, making TESE an essential tool in male reproductive medicine (Agarwal et al., 2015). For many, TESE allows for sperm retrieval even when conventional methods fail, giving couples a renewed chance at achieving biological pregnancy.
Common Indications for TESE
- Obstructive Azoospermia: The testicles produce sperm, but a physical blockage (congenital or acquired, e.g., from vasectomy, injury, or infection) prevents sperm from entering the semen.
- Non-Obstructive Azoospermia: The testicles produce little or no sperm due to factors such as genetic abnormalities, hormonal imbalances, or unknown causes.
- Previous Vasectomy or Failed Reversal: Men wanting to conceive after a vasectomy, or after unsuccessful reversal, may require TESE if blockage remains.
- Congenital or Acquired Obstructions: Severe male infertility due to congenital absence of the vas deferens (seen in men with cystic fibrosis mutations) or post-infection scarring.
Key Point: TESE is not used for problems such as low sperm motility or abnormal sperm shape—only for men with zero sperm detected in the ejaculate after comprehensive testing.
How Is the TESE Procedure Done?
The TESE procedure is usually performed by a urologist trained in male reproductive surgery and is often done on an outpatient basis.
General Steps in the TESE Procedure
- Anesthesia: Local anesthesia with or without sedation is common, though general anesthesia may be used for complex cases.
- Testicular Access: A small incision is made in the scrotal skin to expose the testicle(s).
- Tissue Biopsy: The surgeon removes small fragments of testicular tissue, targeting areas most likely to contain sperm.
- Sperm Search: The tissue is immediately processed in an embryology lab, where a specialist examines the sample under a microscope to locate viable sperm.
- Sperm Use or Cryopreservation: Any sperm found can be used fresh for ICSI or frozen for later IVF attempts.
The timing of TESE can be aligned with a female partner’s ovulation and egg retrieval to maximize the chances of fertilization using freshly obtained gametes.
Did you know? Many sperm retrieved during TESE are non-motile and would not swim toward an egg naturally, but when used for ICSI, even these sperm can fertilize an egg and result in a healthy pregnancy (Schlegel, 1999).
What Are the Different Types of TESE Surgery?
There are several technical approaches to testicular sperm retrieval, each with distinct benefits, drawbacks, and clinical indications.
Conventional TESE
- Involves making an incision in the testicle and removing small pieces of testicular tissue.
- Simpler and less expensive but may miss areas where sperm are being produced, especially in non-obstructive azoospermia.
Microdissection TESE (Micro TESE)
- Uses a high-powered surgical microscope to identify and collect only those seminiferous tubules likely to contain sperm.
- Increases retrieval rates and minimizes tissue removal and testicular damage, especially for non-obstructive azoospermia.
- Requires specialized training and equipment and takes longer than conventional TESE (Schlegel, 1999).
TESA (Testicular Sperm Aspiration)
- A needle is inserted into the testicle to aspirate tissue; less invasive since no incision is made.
- More suitable for obstructive cases; has a lower yield than TESE in men with poor sperm production.
MESA and PESA (Microsurgical Epididymal Sperm Aspiration & Percutaneous Epididymal Sperm Aspiration)
- Target the epididymis—the coiled tube storing sperm above the testicle.
- Highly effective for obstructive azoospermia, but not used for cases where sperm production is impaired.
Quick Facts Table: TESE Procedure Types
| Method | Invasiveness | Best For | Approximate Success Rates | Comments |
|---|---|---|---|---|
| TESE | Moderate | Both azoospermia types | 30–50% | Standard, straightforward |
| Micro TESE | Higher | Non-obstructive azoospermia | 40–65% | High yield, less tissue damage |
| TESA | Minimal | Obstructive azoospermia | 20–40% | Less effective in low production |
| MESA/PESA | Minimal | Obstructive azoospermia | 80–100% | Not for non-obstructive cases |
Key Point: Micro TESE is the most successful sperm retrieval technique for non-obstructive azoospermia (Yu & Li, 2018).
How Should Men Prepare for TESE?
Comprehensive preparation helps maximize sperm retrieval success while reducing potential complications.
Typical Preoperative Steps
- Clinical Evaluation: A reproductive urologist reviews medical history, performs exams, and confirms that azoospermia is present on at least two semen analyses.
- Hormone Testing: Blood tests for FSH, LH, testosterone, and prolactin provide information about hormone balance and testicular function.
- Genetic Counseling/Testing: Especially important in non-obstructive cases; may include screening for Klinefelter syndrome or Y-chromosome microdeletions (ASRM, 2015).
- Infectious Disease Screening: Standard safety protocols require testing for HIV, hepatitis B/C, and other sexually transmitted infections prior to assisted reproduction or sperm banking.
- Medication and Lifestyle Review: Many medications (such as testosterone, steroids, some cancer therapies) and lifestyle factors can suppress sperm production. Patients are advised to stop harmful substances, quit smoking, reduce alcohol, and improve nutrition.
- Psychosocial Support: Infertility is emotionally taxing. Counseling, peer support, or a visit with a fertility psychologist can provide valuable coping tools.
Key Point: Proper preparation and a full evaluation by a reproductive urologist are critical before moving forward with TESE.
What Are the Risks and Complications of TESE?
While TESE procedures are generally safe, they do carry some risks, as do all surgical interventions.
Potential Risks
- Bleeding or Hematoma: Blood may accumulate in the scrotum, causing swelling or discomfort.
- Infection: Precautions are taken to minimize infection risk, but wound or deeper infections can occur.
- Testicular or Scrotal Pain: Most men experience some short-term soreness; persistent pain is uncommon.
- Testicular Tissue Damage: Overly aggressive tissue removal can decrease testosterone production, especially after repeated or extensive sampling (Corona et al., 2017).
- Anesthesia Risks: Small but present, as with any surgery.
- Failure to Retrieve Sperm: Despite best efforts, about 35–70% (sometimes higher) of men with non-obstructive azoospermia may not have usable sperm found during TESE.
Risks vs. Ways to Reduce Risk Table
| Risk | How to Reduce It |
|---|---|
| Bleeding | Careful surgical technique, avoid blood thinners before surgery |
| Infection | Strict sterile procedures, post-op care and monitoring |
| Testicular damage | Micro TESE, limit tissue removal to essential areas |
| Hormonal changes | Check baseline and post-op testosterone levels |
| Pain | Use prescribed pain relief, support the scrotum |
Did you know? Most men do not experience long-term testosterone reduction following micro TESE, particularly if hormone levels are normal before surgery (Corona et al., 2017).
How Is Recovery After TESE Managed?
Recovery from TESE is often rapid, but attentive aftercare reduces the risk of complications and expedites the return to normal activity.
Early Recovery
- Pain Relief: Over-the-counter medications such as acetaminophen or ibuprofen usually suffice.
- Ice Packs: Applying ice intermittently to the scrotum in the first 24–48 hours helps reduce swelling.
- Supportive Underwear: Wearing snug briefs or a jockstrap minimizes pain and supports healing.
Activity Restrictions
- Rest: Avoid strenuous activity, heavy lifting, and sexual activity for at least one to two weeks.
- Wound Care: Keep the incision clean and dry, and follow all post-operative instructions.
- Follow-Up Visits: Attend all scheduled appointments to review healing and discuss sperm retrieval results.
Key Point: Most men return to light activities within several days; full recovery is typical by two weeks post-surgery.
What Are Typical Success Rates for TESE?
Success rates for testicular sperm extraction largely depend on the underlying reason for infertility and the retrieval technique.
Sperm Retrieval Rates
- Obstructive Azoospermia (OA): Because sperm production is usually normal, the chance of finding sperm is very high—95–100% (ASRM, 2015).
- Non-Obstructive Azoospermia (NOA): Lower rates, typically 30–65%, with micro TESE providing the highest retrieval rates (Schlegel, 1999).
Pregnancy Rates After TESE + ICSI
- Using TESE-retrieved sperm in ICSI-IVF cycles yields clinical pregnancy rates of about 25–45% per attempt (Esteves et al., 2015).
- Live birth rates depend heavily on the female partner’s age and fertility, as well as the experience of the IVF laboratory and clinical team.
Factors Affecting Outcome
- Type and severity of azoospermia
- Testicular health and volume
- The age and general health of both partners
- Skill and experience of the surgical team
- Underlying genetic or hormonal abnormalities
- Choice of sperm retrieval technique (micro TESE, TESA, etc.)
How Does TESE Compare to Other Sperm Retrieval Techniques?
There are multiple methods for testicular sperm retrieval, each with advantages and limitations depending on the clinical scenario.
TESE vs. TESA
- TESE: Involves open biopsy, enabling more thorough tissue sampling; preferred for non-obstructive or complex cases.
- TESA: Uses needle aspiration and is less invasive but often less effective when sperm production is severely impaired.
- Micro TESE is recommended for men with non-obstructive azoospermia due to its superior retrieval rates.
TESE vs. MESA/PESA
- MESA/PESA: Use aspiration from the epididymis and are ideal for obstructive azoospermia when sperm production is intact.
- TESE: Required for men with defective or impaired sperm production.
Key Point: The selected extraction method should be tailored to the individual cause of infertility and discussed with a fertility urologist.
Frequently Asked Questions About TESE
What does TESE mean in men's sexual health?
TESE, or testicular sperm extraction, is a surgical procedure that allows men who have no sperm in their semen (azoospermia) to have sperm directly retrieved from the testicle. It’s a proven technique in male infertility treatment and often used when couples pursue ICSI-IVF.
Is TESE a common procedure for infertility?
Yes, TESE is widely used and considered standard care for men with azoospermia in fertility clinics with appropriate expertise (ASRM, 2015).
Is the TESE procedure safe for men?
TESE is associated with minimal risk when performed by experienced specialists. Temporary soreness or bruising is typical, while serious complications are rare.
Does TESE affect sexual performance or erections?
TESE does not generally impair sexual performance, libido, or erections. Rare instances of hormone reduction may occur if excessive testicular tissue is removed, so testosterone levels are monitored after surgery.
Can TESE improve intimacy or potentially strain relationships?
Undergoing TESE can bring hope and reassurance to couples but fertility struggles and surgical treatments can be stressful. Open communication and mutual support are vital.
What are potential physical risks of TESE surgery?
Physical risks include bleeding, infection, temporary pain, or rarely reduced testicular function (Corona et al., 2017). Most complications are short-lived with proper care.
Can TESE cause anxiety, guilt, or shame?
Yes, men may experience powerful emotions around infertility and surgical treatments. Psychological counseling and joining peer support groups are beneficial (Shindel & Nelson, 2013).
How can men ensure safety and good communication around TESE?
Prioritize informed consent, discuss all risks and outcomes with your healthcare team, and engage your partner in open, supportive conversation.
Who should not undergo TESE surgery?
TESE is not suitable for men with severe, uncorrected illnesses, severely damaged or scarred testicles, or known genetic risks that may affect offspring (determined via genetic screening).
How should partners discuss TESE without embarrassment?
Frame the conversation around teamwork and shared goals. Enlisting the help of a reproductive psychologist can facilitate healthy communication.
Is agreeing to TESE a sign of deeper relationship issues?
TESE is a medical intervention for infertility, not a reflection of relationship problems. Nonetheless, emotional strain from the fertility journey can sometimes surface preexisting tensions.
What should I do if my partner is uncomfortable with TESE?
Listen respectfully and address concerns together, possibly with guidance from healthcare or counseling professionals. Explore all options, including donor sperm or adoption, if needed.
When should I consult a doctor or mental health provider about TESE?
Speak with a reproductive urologist after azoospermia is confirmed. Seek mental health support if fertility challenges become overwhelming for you or your partner.
How is micro TESE different from standard TESE?
Microdissection TESE uses a microscope to focus tissue sampling, offering higher sperm retrieval rates and fewer complications than conventional TESE (Schlegel, 1999).
Can sperm from TESE be frozen for future use?
Yes, sperm obtained by TESE can be cryopreserved, though some clinics prefer using fresh sperm for IVF/ICSI, especially if coordinating with a partner’s egg retrieval.
Does general health or lifestyle influence TESE outcomes?
Absolutely. Healthy body weight, avoiding tobacco/alcohol, and discontinuing medications that impair sperm production can improve both sperm retrieval and surgical recovery.
Is TESE repeated if sperm are not found the first time?
Yes, repeat TESE (especially using micro TESE technique) may sometimes result in sperm retrieval. However, the likelihood of success generally declines with repeated attempts.
How long is recovery after TESE?
Most men resume normal activities within two to three days, with complete healing usually within one to two weeks.
What does TESE cost and is it covered by insurance?
TESE costs range from $3,000–$10,000, depending on the clinic, region, and surgical method. Insurance coverage varies; check with your provider for fertility-related benefits.
References and Further Reading
- Agarwal A, Mulgund A, Hamada A, Chyatte MR. A unique view on male infertility around the globe. https://pubmed.ncbi.nlm.nih.gov/25456933/
- Practice Committee of the American Society for Reproductive Medicine. The management of infertility due to obstructive azoospermia. https://pubmed.ncbi.nlm.nih.gov/25936236/
- Schlegel PN. Testicular sperm extraction: microdissection improves sperm yield with minimal tissue excision. https://pubmed.ncbi.nlm.nih.gov/10405996/
- Esteves SC, Miyaoka R, Agarwal A. Sperm retrieval techniques for assisted reproduction in azoospermic men: a systematic review and meta-analysis. https://pubmed.ncbi.nlm.nih.gov/26139109/
- Corona G, Pizzocaro A, Lanfranco F, et al. Sperm recovery and ICSI outcomes in men with nonobstructive azoospermia: a systematic review and meta-analysis. https://pubmed.ncbi.nlm.nih.gov/28703574/
- Yu B, Li L. Microdissection testicular sperm extraction: its application in azoospermic males. https://pubmed.ncbi.nlm.nih.gov/29905821/
- Shindel AW, Nelson CJ. Consequences of cancer and its treatment on men's sexual health. https://pubmed.ncbi.nlm.nih.gov/23775330/
- American Urological Association: Male Infertility Guide https://www.auanet.org/guidelines/male-infertility
- National Institute of Child Health and Human Development: How are male infertility problems treated? https://www.nichd.nih.gov/health/topics/infertility/conditioninfo/treatment/male
- World Health Organization: Semen analyses and fertility https://www.who.int/teams/sexual-and-reproductive-health-and-research/key-areas/semen-analysis
Disclaimer
This article is for informational and educational purposes only and does not constitute medical or mental health advice. It is not a substitute for speaking with a qualified healthcare provider, licensed therapist, or other professional who can consider your individual situation.
