Testicular Biopsy: Diagnostic Tool for Male Infertility

A testicular biopsy is a procedure in which a small sample of tissue is taken from a testicle to examine sperm production and, in some cases, look for sperm for fertility treatment. It may help selected men with no sperm in their semen, but it is not a routine first test for male infertility. The decision depends on semen tests, examination, hormone levels, and whether the procedure could change treatment.

Hearing that you may need a biopsy can feel worrying. At PRAVI IVF & Fertility Centre, Kanpur, we encourage couples to understand why a test is being suggested and what its results may mean. A fertility problem is a medical concern, not a measure of masculinity or anyone’s fault.

What Is a Testicular Biopsy?

The testicles produce sperm and the hormone testosterone. During a testicular biopsy, a clinician removes a small amount of testicular tissue. A laboratory can examine this tissue to understand the pattern of sperm production.

If sperm retrieval is planned, an embryology laboratory searches appropriately handled tissue for usable sperm. Tissue preserved for routine microscopic examination cannot later be used for fertility treatment, so the purpose and laboratory arrangements must be discussed beforehand.

When Might a Testicular Biopsy Be Considered?

The procedure is most relevant in selected cases of azoospermia, which means no sperm are found in the ejaculate after appropriate laboratory assessment. This finding is generally confirmed with repeat semen testing, including examination of the centrifuged sample where indicated.

Azoospermia broadly has two possible explanations:

• Obstructive azoospermia: sperm are being produced, but a blockage or absent reproductive duct prevents them from reaching the semen.
• Non-obstructive azoospermia: sperm production is significantly reduced or absent, although small areas of production may remain.

A biopsy solely to distinguish these conditions is usually unnecessary. Medical history, examination, semen findings, and hormone tests often provide enough information. In an unclear case, tissue assessment may occasionally be useful, preferably with sperm retrieval planned when appropriate.

A low sperm count alone does not usually justify a biopsy. Read more about the broader evaluation through our male infertility services in Kanpur.

Which Tests Usually Come First?

Before recommending an invasive procedure, the clinician will review previous reports and discuss illnesses, medicines, surgery, undescended testicles, infections, and any use of testosterone or anabolic steroids.

The assessment may include:

• Semen analysis, repeated when needed to confirm an abnormal result.
• A physical examination, including testicular size and the reproductive ducts.
• Hormone tests, commonly follicle-stimulating hormone and testosterone, with others when indicated.
• Genetic testing in selected men with azoospermia or severely reduced sperm production.
• Ultrasound or other imaging only when the history or examination suggests a need.

Some genetic findings can affect the likelihood of retrieving sperm or have implications for a future child. Genetic counselling may therefore be recommended before treatment. Both partners should be evaluated together so that decisions reflect the couple’s overall situation.

Is a Biopsy the Same as TESA, PESA, or TESE?

These terms are related but not interchangeable. A diagnostic biopsy examines tissue, while sperm retrieval aims to obtain sperm for assisted reproduction.

TESA and PESA

Testicular sperm aspiration, or TESA, uses a needle to obtain material from the testicle. Percutaneous epididymal sperm aspiration, or PESA, collects fluid from the epididymis, the structure where sperm mature and are stored. PESA is not a testicular biopsy and is generally considered when there is an obstruction.

TESE and Micro-TESE

Testicular sperm extraction, or TESE, involves removing small pieces of testicular tissue. Microdissection TESE, called micro-TESE, uses an operating microscope to identify areas more likely to contain sperm.

For men with non-obstructive azoospermia who undergo surgical retrieval, micro-TESE is generally the preferred approach. The right method depends on the diagnosis, specialist assessment, and laboratory support. Our information on TESA and PESA explains related retrieval options.

How Should You Prepare?

Ask whether the planned procedure is for diagnosis, sperm retrieval, or both. Also clarify what will happen if sperm are found, whether freezing is planned, and what choices remain if no sperm are retrieved.

Share all prescription medicines, supplements, allergies, and bleeding problems with your care team. Do not stop blood thinners or other medicines on your own. Follow the team’s instructions about fasting, hygiene, and arranging someone to take you home if sedation or general anaesthesia is used.

Avoid starting testosterone injections or “male fertility boosters” without specialist advice. Testosterone taken from outside the body can suppress sperm production.

What Happens During the Procedure?

The procedure is performed under sterile conditions with local anaesthesia, sedation, or general anaesthesia, depending on the technique and individual needs. For an open biopsy, the clinician makes a small incision and removes a small tissue sample. The incision is then closed as needed.

If retrieval is intended, the embryology team examines the sample for sperm. Usable sperm may be frozen or used according to the agreed treatment plan. Many patients can return home the same day, although observation and discharge arrangements vary.

Recovery and Possible Risks

Mild discomfort, bruising, or swelling can occur after the procedure. Your team will advise you about pain relief, supportive underwear, wound care, and when to resume work, exercise, and sexual activity. Recovery instructions differ between needle aspiration and more extensive surgery.

Possible complications include bleeding, a collection of blood called a haematoma, infection, and persistent pain. Testicular tissue damage and a fall in testosterone can occur, particularly after more extensive or repeated procedures. Discuss your individual risks before giving consent.

Contact the treating team promptly if you develop fever, worsening pain, increasing swelling, wound discharge, persistent bleeding, or difficulty passing urine. Do not apply home remedies to the wound.

What Can the Results Tell You?

Tissue examination may show preserved sperm production, reduced production, sperm development stopping at an earlier stage, or no sperm-producing cells in the sampled tissue. These findings must be interpreted alongside the rest of your assessment.

A small biopsy samples only one area. Sperm production can be patchy, so a sample without sperm does not always prove that no sperm exist anywhere in the testicle. Equally, no procedure can guarantee that sperm will be found.

If sperm are retrieved, they are generally used with intracytoplasmic sperm injection, or ICSI, as part of IVF treatment. An embryologist injects a single sperm into an egg. Finding sperm does not guarantee fertilisation, pregnancy, or a healthy birth. Learn more about ICSI treatment in Kanpur.

Making a Decision Together

The most useful question is: “How will this procedure change our treatment plan?” You should understand the alternatives, the risks, and the plan for each possible result before proceeding.

Depending on the cause, options may include treatment for a specific hormonal disorder, correction of an obstruction in selected cases, sperm retrieval with IVF-ICSI, or other family-building choices. Counselling can help you process difficult news without pressure to make an immediate decision.

For guidance on whether a testicular biopsy is appropriate, book an appointment at PRAVI IVF & Fertility Centre, Kanpur, or WhatsApp +91 80091 50040. Bring your previous reports so we can help you understand the next step.