Micro-TESE: Procedure, Preparation, Recovery, and Success Rates For men diagnosed with azoospermia, the absence of sperm in the semen can be an emotionally difficult fertility challenge. However, in selected cases, sperm may still be present inside the testicular tissue even when no sperm are found in the ejaculate. Microdissection Testicular Sperm Extraction (Micro-TESE) is an advanced surgical sperm-retrieval technique that uses an operating microscope to identify areas of the testis that are more likely to contain sperm. The retrieved sperm can potentially be used for IVF with ICSI. At Simran IVF and Fertility Centre, Mohali, Dr. Gursimran Dhaliwal can evaluate male-factor infertility and discuss appropriate assisted-reproduction options based on the individual's diagnosis, test results and fertility goals. What Is Micro-TESE? Micro-TESE stands for Microdissection Testicular Sperm Extraction. It is a surgical procedure primarily used for selected men with non-obstructive azoospermia (NOA), a condition in which the testes produce little or no sperm and sperm are therefore absent from the semen. During micro-TESE, a surgeon uses an operating microscope to examine testicular tissue and identify seminiferous tubules that appear more likely to contain sperm. Tissue samples are carefully collected and examined by the embryology laboratory for viable sperm. If viable sperm are found, they may be used for ICSI as part of an IVF treatment cycle. Who May Need Micro-TESE? Micro-TESE may be considered for men with non-obstructive azoospermia, particularly when conventional semen analysis repeatedly shows no sperm and other evaluations indicate impaired sperm production. A complete male fertility evaluation is important before considering sperm retrieval. Guidelines recommend assessing the reproductive history, performing semen analysis and conducting additional investigations when indicated. Hormonal and genetic testing may also be appropriate in selected men with azoospermia or severe sperm-production problems. Possible reasons for non-obstructive azoospermia include: Impaired sperm production Certain genetic conditions Testicular disorders Previous chemotherapy or radiation Hormonal disorders Certain congenital conditions Severe testicular damage Micro-TESE is not automatically required for every man with azoospermia. The appropriate sperm-retrieval technique depends on whether the azoospermia is obstructive or non-obstructive and on the individual's clinical findings. Micro-TESE vs Conventional TESE Both procedures aim to retrieve sperm from testicular tissue, but the techniques differ. Conventional TESE: A small piece or samples of testicular tissue are removed and examined for sperm. Micro-TESE: An operating microscope is used during the procedure to help identify seminiferous tubules that may contain sperm. This allows the surgeon to search the testicular tissue more selectively. For men with non-obstructive azoospermia undergoing surgical sperm retrieval, the AUA/ASRM guideline recommends micro-TESE as the preferred approach. The guideline also notes that micro-TESE has been associated with a higher sperm-retrieval likelihood than non-microsurgical testicular sperm extraction in published evidence. Micro-TESE Preparation Preparation begins with a detailed evaluation rather than directly scheduling surgery. Your fertility team may review: Previous semen-analysis reports Medical and surgical history Previous fertility treatments Testicular examination Hormonal investigations Genetic testing when clinically indicated Previous chemotherapy or radiation exposure Medications and supplements The female partner's fertility assessment IVF/ICSI treatment planning The AUA/ASRM guideline recommends that men with azoospermia be evaluated to distinguish obstruction from impaired sperm production, because the diagnosis can influence the choice of treatment and sperm-retrieval method. Genetic Testing May Be Important Some men with azoospermia or severe oligospermia may have an underlying genetic cause. Depending on the clinical findings, doctors may recommend karyotyping and Y-chromosome microdeletion testing before proceeding with fertility treatment. This information can help with counselling, treatment planning and understanding the potential implications for biological children. How Is the Micro-TESE Procedure Performed? The exact surgical and anaesthesia protocol depends on the patient and the treating surgical team, but the procedure generally involves the following steps: 1. Anaesthesia The procedure is performed under appropriate anaesthesia so the patient does not experience the surgical procedure. 2. Testicular Access The surgeon makes a small surgical incision to access the testicular tissue. 3. Microscopic Examination An operating microscope is used to examine the testicular tissue. The surgeon looks for seminiferous tubules that may be more likely to contain sperm. 4. Tissue Retrieval Selected tissue samples are carefully removed while attempting to preserve as much healthy testicular tissue as possible. 5. Laboratory Examination The embryology team examines the tissue under laboratory conditions to identify viable sperm. 6. Sperm Preservation or ICSI If suitable sperm are identified, they may be used for ICSI or cryopreserved according to the treatment plan and laboratory protocol. AUA/ASRM guidance states that either fresh or cryopreserved surgically retrieved sperm may be used for ICSI when appropriate. What Happens After Micro-TESE? After the procedure, patients generally need some recovery time before returning to normal activities. Temporary symptoms may include: Mild discomfort Swelling Bruising Tenderness around the surgical area Temporary restrictions on strenuous physical activity Your surgeon will provide individual instructions regarding wound care, physical activity, medications and follow-up. Recovery time varies from person to person and depends on the surgical technique and individual health. Micro-TESE Recovery: Important Considerations During recovery, patients may be advised to: Follow the surgeon's wound-care instructions Take prescribed medicines as directed Avoid strenuous activity until medically cleared Wear supportive underwear if recommended Attend the scheduled follow-up appointment Report unusual or worsening symptoms promptly Patients should seek medical advice if they experience significant bleeding, increasing swelling, severe pain, fever, wound discharge or other concerning symptoms. What Is the Micro-TESE Success Rate? One of the most important points to understand is that micro-TESE does not guarantee sperm retrieval. Published sperm-retrieval rates vary considerably depending on the underlying cause of non-obstructive azoospermia, genetic factors, hormonal status, testicular function and other patient-specific characteristics. The AUA/ASRM guideline notes that published evidence has found micro-TESE to be more successful than non-microsurgical TESE in men with non-obstructive azoospermia. Recent ASRM educational material also notes that reported sperm-retrieval rates for micro-TESE in non-obstructive azoospermia can approach around 50%, while emphasising that reliable prediction of individual success remains difficult. Therefore, it is better to discuss an individualised estimated chance of sperm retrieval rather than relying on a single advertised percentage. What Factors Affect Micro-TESE Success? The likelihood of finding sperm may depend on: Cause of azoospermia Genetic findings Hormonal profile Testicular size and function Previous sperm-retrieval attempts History of chemotherapy or radiation Underlying testicular pathology Experience of the surgical and embryology team A consultation with an appropriate male-reproductive specialist can help determine the most suitable approach. What Happens If Sperm Are Found? If viable sperm are retrieved, they can potentially be used for Intracytoplasmic Sperm Injection (ICSI). During ICSI, a single sperm is injected directly into a mature egg during an IVF cycle. This can be particularly relevant when very few sperm are available. Importantly, finding sperm through micro-TESE does not by itself guarantee fertilisation, embryo development, pregnancy or live birth. These outcomes depend on multiple factors involving both partners. What If Micro-TESE Does Not Find Sperm? Unfortunately, sperm retrieval may not be successful in every case. If no viable sperm are found, the fertility specialist may discuss other options based on the couple's circumstances, such as further evaluation, alternative treatment approaches, donor sperm or other family-building options. The appropriate decision should be made after understanding the cause of azoospermia and the couple's reproductive goals. Micro-TESE and IVF-ICSI in Mohali For couples considering fertility treatment in Mohali, coordination between the male fertility evaluation, sperm-retrieval procedure and IVF laboratory is important. At Simran IVF and Fertility Centre, Mohali, Dr. Gursimran Dhaliwal can help couples understand their fertility reports and discuss whether IVF, ICSI or surgical sperm retrieval may be appropriate. Micro-TESE should be considered only after a proper diagnosis and discussion of its potential benefits, limitations and risks. Frequently Asked Questions About Micro-TESE Is Micro-TESE painful? The procedure is performed under appropriate anaesthesia. Some discomfort, swelling or tenderness can occur during the recovery period. Your surgical team will provide pain-management and aftercare instructions. Is Micro-TESE suitable for every azoospermic man? No. The cause of azoospermia must first be established. Micro-TESE is particularly relevant to selected men with non-obstructive azoospermia, whereas obstructive azoospermia may often be managed using other sperm-retrieval techniques. Can Micro-TESE retrieve sperm when there are no sperm in the semen? Yes, in some men with non-obstructive azoospermia, sperm-producing areas may remain within the testes even though sperm are absent from the ejaculate. Micro-TESE is designed to search for these areas. Can retrieved sperm be frozen? Yes. Depending on the number and quality of sperm retrieved and the laboratory's protocol, sperm may be cryopreserved for future use. AUA/ASRM guidance recognises the use of fresh or cryopreserved surgically retrieved sperm for ICSI in appropriate cases. Does Micro-TESE guarantee pregnancy? No. Micro-TESE is a sperm-retrieval procedure, not a pregnancy guarantee. Even when sperm are successfully retrieved, subsequent IVF-ICSI outcomes depend on egg quality, embryo development, maternal age and other factors. Micro-TESE Treatment in Mohali If you or your partner has been diagnosed with azoospermia or severe male-factor infertility, don't assume that biological parenthood is impossible. A detailed evaluation can determine whether sperm production is present and whether techniques such as micro-TESE followed by IVF-ICSI may be appropriate. For couples seeking micro-TESE, male infertility treatment, azoospermia evaluation or IVF-ICSI in Mohali, Dr. Gursimran Dhaliwal at Simran IVF and Fertility Centre can provide personalised fertility guidance based on the couple's medical history and investigation results.