TESA treatment

TESA – testicular sperm aspiration

  • The technique called Testicular Sperm Extraction, or TESE, is used in cases of non-obstructive azoospermia.

  • This technique involves the collection of sperm directly from the testis.

  • The patient may require an additional injection of intravenous drugs, to achieve a mild degree of sedation.

  • A special needle, which allows the surgeon to recover several samples of testicular tissue from different locations, is used.

  • A sample from the testicular biopsy will be sent for Histological examination in order to obtain a tissue diagnosis and also to rule out the risk of Testicular Cancer, which is known to occur slightly more frequently (1%) in men with non-obstructive azoospermia.

After the Procedures?

Patients are generally informed on the same day whether sperm has been found or not. However, in the most difficult cases, a two to three day period of tissue incubation is necessary before sperm can be recovered.

Recovered sperm will be frozen for later use. There are generally enough sperm to perform several IVF / ICSI cycles.

The chance of recovering sperm is almost 100% if there is a simple blockage. With abnormalities of the testes, the average recovery rate is around 50% - 60%.

It is therefore important to understand that there is no guarantee of finding sperm even when the pre-operative tests seem encouraging.

Immediate Post Procedure Symptoms?

  • You will start to feel some discomfort when the local anaesthetic wears off, a couple of hours after the end of the procedure.

  • You will be given a prescription for antibiotics and painkillers.

  • Convalescence takes 4-5 days after a TESE.

  • In our experience complications are rare. Whilst some bruising or swelling can occur this rarely requires additional treatment, although post operative haematoma (a mass of clotted blood in the tissue) has been described in other literature. Furthermore, two cases of post-operative testicular atrophy have been reported worldwide.


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