Testicular Biopsy
What is a Testicular Biopsy?
A testicular biopsy is a procedure in which a small sample of tissue is removed from one or both testicles and examined under a microscope. It is most commonly performed to investigate problems with sperm production and to help determine the cause of male infertility when other tests have not provided a clear diagnosis.
A testicular biopsy may also be used to retrieve sperm directly from the testicular tissue for assisted reproductive techniques, such as intracytoplasmic sperm injection (ICSI), in men who have very low or no sperm present in the semen due to certain conditions. In selected cases, it may also assist in diagnosing testicular abnormalities.
What are the Benefits of a Testicular Biopsy?
A testicular biopsy can provide valuable information about testicular function and fertility.
Benefits include:
- Helps identify the cause of reduced or absent sperm production
- Distinguishes between problems with sperm production and sperm transport
- May locate areas where healthy sperm are being produced
- Allows sperm retrieval for fertility treatment in selected patients
- Provides detailed examination of testicular tissue
- Helps guide appropriate fertility or urological treatment decisions
When is a Testicular Biopsy Recommended?
A testicular biopsy is recommended in selected patients when information about testicular tissue is needed.
Common indications include:
- Azoospermia (absence of sperm in semen)
- Severe male infertility with unclear cause
- Suspected impaired sperm production
- Assessment before assisted reproductive treatment
- Evaluation of certain testicular abnormalities
- Differentiating between obstructive and non-obstructive azoospermia
Before recommending a biopsy, your urologist will usually perform a detailed assessment, including semen analysis, hormone testing, physical examination, and imaging where appropriate.
What does Preparation for a Testicular Biopsy Involve?
Preparation depends on whether the biopsy is being performed purely for diagnosis or to retrieve sperm for fertility treatment.
Preparation may include:
- Medical history and physical examination
- Semen analysis
- Hormone blood tests, including testosterone and follicle-stimulating hormone (FSH)
- Testicular ultrasound if required
- Review of previous fertility treatments
- Discussion of anaesthetic options
- Review of current medications, including blood-thinning medicines
- Instructions regarding fasting if general anaesthetic is planned
Your urologist will discuss whether sperm retrieval and storage arrangements are required before the procedure.
How is a Testicular Biopsy Performed?
A testicular biopsy may be performed under local anaesthetic, sedation, or general anaesthetic depending on the technique used and the patient’s circumstances.
The surgeon makes a small incision in the scrotal skin and carefully opens the outer covering of the testicle to access the testicular tissue. A small sample is removed using precise surgical techniques, and the tissue is sent to a laboratory for microscopic examination.
There are several approaches to testicular biopsy. A conventional biopsy involves removing a small piece of tissue from the testicle through a small incision. In some cases, a microdissection testicular sperm extraction (micro-TESE) may be performed using an operating microscope to identify areas more likely to contain sperm, particularly in men with non-obstructive azoospermia.
If sperm are found during the procedure, they may be collected and used immediately for fertility treatment or frozen for future use, depending on the treatment plan.
After the sample is obtained, the tissue is returned to its normal position, the incision is closed with dissolvable stitches, and a dressing is applied.
What to Expect during Recovery after a Testicular Biopsy?
Most patients recover quickly after a testicular biopsy and can usually return home on the same day.
During recovery, you may experience:
- Mild testicular or scrotal discomfort
- Bruising or swelling
- Tenderness around the incision site
- Small amounts of bleeding or fluid leakage
- Temporary restrictions on physical activity
Patients are usually advised to wear supportive underwear, avoid heavy lifting and strenuous exercise for several weeks, and avoid sexual activity until healing has occurred.
Your urologist will discuss when you can resume normal activities and arrange follow-up to review the biopsy results.
What are the Risks and Complications of a Testicular Biopsy?
A testicular biopsy is generally safe, but all surgical procedures carry potential risks.
Possible complications include:
- Bleeding
- Infection
- Scrotal swelling or bruising
- Pain or discomfort
- Haematoma (collection of blood within the scrotum)
- Testicular injury, although uncommon
- Reduced testicular function in rare cases
- Scar tissue formation
- Need for additional procedures
- Anaesthetic-related complications
Your urologist will explain why a testicular biopsy is recommended, discuss the expected benefits and possible risks, and provide personalised advice based on your fertility goals and overall health.