Testicular prosthesis implantation

What is testicular prosthesis implantation?

Testicular prostheses are ovoid structures that mimic the shape of a normal male testicle. They are implanted via a surgical operation, which may be the same one as for the genital gender confirmation surgery (metoidioplasty or phalloplasty), or a second surgical operation. The decision on when to implant these prostheses will be taken in each case by the surgeon and will depend on the degree of swelling occurring during surgery, the number of intraoperative hours and patient characteristics, among other factors.


The patient will be admitted to the hospital centre on the same day as the operation. Before the operation the pertinent controls will be conducted and the patient will not have to remain admitted if the operation consists only of implanting the testicular prostheses.

The operation

The testicular prostheses are implanted in all cases in the scrotal sac recreated from the labia majora during the phalloplasty or metoidioplasty via a small incision using the previous scars. The operation tends to last from 30 minutes to an hour and is performed under general anaesthesia.


After the first 48 hours, the patient’s movement will be limited to the maximum, despite being discharged on the same day as the operation.

Possible complications

The complications that most frequently may appear are:

  • Infection
  • Bleeding: The patient may experience an episode of bleeding during or after the operation.
  • Extrusion (popping out) of the testicular prostheses.
  • Displacement of the testicular prostheses.