Main types of Penile Prosthesis: Learn more about implants


We have already discussed here. As important as these two topics is to understand what types of implants are available on the market and clarify all your doubts.

Knowing the different penile implants is important if there’s a possibility you may need this treatment. The choice of the type of prosthesis to be used, however, will depend on a pre-assessment at the time of the consultation. In addition to patient preference, other factors are evaluated for this decision, such as medical condition, lifestyle and costs.

Speaking of costs, in this post you will also understand how the choice of prosthesis is made.
If you have any doubts, you can contact me through this form.



protese-peniana-maleavelGood rigidity and malleability of the penis. These are the main characteristics of the malleable or semi-rigid prosthesis, which still has the advantage of not presenting liquid leaks, never stop working and have a low exchange requirement, especially when compared to inflatable models.

The two rods - metal filaments wrapped in silicone - make it easy to disguise everyday erection by leaving the penis malleable and allowing it to be gently placed down or to the sides. When you are going to have sex, just put it in the straight position and you'll be ready for fun.

However, the degree of malleability of the penis and the residual erection do not depend only on the type of prosthesis. A satisfactory result will depend primarily on an adequate surgical procedure, which takes into account the structures of the cavernous bodies of each patient. The great key to a better result is the reconstruction of the tissues designed to the recovery of the penile size and caliber, associated with the correct dimensioning of the implant in the reconstructed organ. When the prosthesis is placed without reconstruction, the chances of the patient feel dissatisfaction are much greater.



The articulated prosthesis can be folded more easily than the malleable, it is also coated with silicone and it is easier to conceal erection. However, the small articulated sections that make up the prosthesis contribute to a scenario of less firmness in the penetration, which we also call low vertical or axial stiffness. This penile implant model is less popular than the others, but, as I said above, it is important that you know of the existence of this model to clarify your doubts once and for all.


The greatest advantage of this type of prosthesis is the possibility of inflating and resuming the flaccidity of the penis when it is most convenient for you. This makes many men consider that is more discreet, however, it has a meticulous functioning and needs attention.

In this type of implant the man produces the erection by manipulating a pump with saline housed in the scrotum. The fluid travels through the cylinders implanted in the penis, which activate the hydraulic system and inflate them. After the sexual act, you can simply press the penis down for a few seconds so that the liquid returns to the reservoir and returns to the resting position.

Two-volume or three-volume inflatable prosthesis? 

The inflatable prosthesis may have two or three volumes and both function in a very similar way. The difference is that the three-volume allows a greater volume of liquid exchange in the system, allowing greater filling of the cylinders when driven for erection and greater flaccidity when deactivated. This is because this model, besides the two cylinders and the pump, also has an extra reservoir of physiological saline, imperceptibly installed in the abdomen of the patient.




The disadvantage of the inflatable prosthesis with two or three volumes is the risk of leakage of the physiological serum. Because it is more complex, its system is liable to mechanical failures caused by the leakage of the liquid, which would require a new surgery for exchange. In this case, the experience and skill of the surgeon is even more important, both during the implant and in the connection of the whole system, to avoid possible problems.

Usually this prosthesis is indicated for patients who are more concerned with discretion, usually younger men, or for those who have organic penile blood problems, which the malleable prosthesis cannot solve satisfactorily. But this is a more profound question, which should be discussed during a medical consultation and a face-to-face assessment.



The most expensive prosthesis option is not always the best. Each patient who needs a penile prosthesis is individually examined through some questions and an artificially induced erection examination associated with a high-definition ultrasound to evaluate the internal structures of the penis. Thus it is possible to understand the causes of the lack of rigidity, if there was any loss of penis size and the conditions associated with this decrease, to define which type of prosthesis is more appropriate.

The cost-benefit factor is also always taken into account. By being aware of the varieties of each model, the patient can choose the one that pleases him, both in terms of functioning and financial possibility. Therefore, what will define the best type of prosthesis to be implanted is the evaluation of the patient, in collaboration with the doctor, and not just the price.

There are times when the malleable prosthesis can offer the best penile aesthetics, with regard to the length and circumference of the penis, but at a lower cost. In other cases it is the inflatable prosthesis that will bring a more harmonic result.

The most important thing is to do the treatment with a medical specialist, with experience in penile reconstruction, always aiming at the best result of size and caliber of the penis. The diagnosis and indications are given during a in-person consultation.

In case it is of your interest, schedule a time to evaluate your situation. I'm here to help you.



Dr. Paulo Egydio

MD, PhD, Dedicado no Tratamento da Doença de Peyronie, Pênis Curvo e Implante de Próteses Penianas. Doutor em Urologia pela USP, CRM 67482, RQE 19514. - Vencedor do Debate do Sobrevivente da AUA em 2019.

Subscribe to our blog