A penile prosthesis does not increase penis size. Its purpose is to restore penile function, allowing the resumption of sexual activity.
Penile prosthesis surgery is not a penile enlargement procedure for aesthetic purposes. Its main function is to restore the rigidity necessary for sexual activity.
However, in patients with penile length loss due to Peyronie’s disease, the implant may be combined with reconstructive techniques to recover part of the lost length, when clinically indicated.
This guide provides information about penile size after a penile prosthesis, including factors that may influence perception and the procedure’s limits. Results should be discussed on an individualized basis during medical evaluation.
Does a Penile Implant Increase Penis Size?
No. A penile prosthesis does not increase penis size.
The function of the prosthesis is to restore the vertical rigidity of the penis in cases of severe erectile dysfunction or functional impairment due to Peyronie’s disease.
The impression of increased length may occur when the rigidity provided by the device allows a penile extension different from that observed before the procedure. That perception does not, by itself, mean there has been a real gain in penile length.
Why do some patients believe they have gained size?
Restoration of rigidity is not the only factor that leads some men to believe they have gained penis size after a prosthesis.
Below we explain this and other aspects that help to understand why this perception may occur.
- Perception of rigidity: Before penile prosthesis surgery, some men may not be able to obtain or maintain an erection, which can make the penis appear smaller. When the device provides rigidity, the perception of penile length may be different, without that necessarily representing an increase in dimensions.
- Perception of projection: The rigidity produced by the device may alter the perception of penile alignment and projection during erection. This visual change does not, by itself, represent an increase in length.
- Possible recovery of part of previously lost length: In Peyronie’s disease there may be loss of penile length, especially when the curvature is pronounced. In selected cases, a penile prosthesis can be combined with reconstructive techniques, when there is a clinical indication, with the aim of addressing the deformity and, when possible, recovering part of the lost measurements.
- Visual perception: After surgery, some patients may notice a difference in the rigidity and appearance of the penis. This perception can influence how they assess size and self-image, even without any real change in penile dimensions.
What determines the final size after surgery?
Is it possible to recover lost length?
In some cases, yes.
When the curvature is very pronounced, fibrosis impairs the elasticity of the penile tissues and loss of penile length may occur.
In those cases, reconstructive techniques can be considered in association with a penile prosthesis when there is a clinical indication. Any recovery of part of the lost measurements depends on individual assessment, the characteristics of the tissues, and the technique considered appropriate.
Shortening caused by erectile dysfunction
Prolonged absence of erections can reduce oxygenation of the corpora cavernosa, which promotes loss of elasticity and atrophy of the smooth muscle. These structural changes contribute to penile shortening.
In that situation, the prosthesis can provide rigidity, while any recovery of penile length depends on reconstructive surgery, the degree of tissue compromise, and the individual assessment.
Fibrosis of the corpora cavernosa
Long periods of untreated erectile dysfunction, episodes of priapism, and prolonged use of intracavernosal injections can result in the corpora cavernosa tissue being partially replaced by scar tissue.
Fibrosis reduces the elasticity of the corpora cavernosa, which makes their expansion to achieve an erection more difficult and contributes to penile shortening.
During penile prosthesis surgery, the urologist assesses the extent of fibrosis and may use reconstructive techniques when clinically appropriate; the implications for penile dimensions vary by case.
Peyronie’s disease
In Peyronie’s disease there is also scar tissue formation, and men with this condition may experience significant loss of penile length, depending on the severity of the case.
A penile prosthesis can be combined with reconstructive techniques to recover part of the lost length, if the urologist considers it possible and safe.
However, even when that is indicated, this does not represent an increase in length or girth, but rather a partial recovery of the dimensions lost as a result of the condition.
Penile rehabilitation before surgery
Penile rehabilitation before penile prosthesis surgery is usually indicated in the following cases:
- Men with Peyronie’s disease with marked curvature and significant loss of length
- Patients with long-standing erectile dysfunction, who may have penile shortening due to impaired tissue elasticity
- Presence of fibrosis after priapism, prolonged use of intracavernosal injections, or other conditions that scar the penile tissue
The urologist may consider the use of traction devices or a vacuum pump before surgery, according to the clinical assessment. These measures may be used in some cases with the aim of supporting preservation of tissue elasticity, without guaranteeing a specific outcome of the procedure.
Reconstructive techniques when indicated
In men with marked curvature, important loss of length, and complex deformities (such as an hourglass-shaped penis), a penile prosthesis may be combined with penile reconstruction techniques when the urologist judges it necessary.
Among the reconstructive options that may be considered are techniques that use planned incisions to address certain anatomic changes. Indication and choice of technique depend on the individual assessment and the clinical characteristics of each case.
When reconstruction is indicated, the sequence between the reconstructive and implantation stages is defined by the urologist according to the anatomy, type of deformity, and surgical planning for each case.
It is important to emphasize that reconstructive techniques are not intended to increase the penis beyond its original dimensions, but to recover, when possible, part of the length lost.
Can a penile prosthesis increase thickness?
No. The penile prosthesis does not increase the thickness of the penis.
Many men believe that a penile prosthesis thickens the penis because restoring rigidity makes the penis firmer and fully extended, creating the impression of greater thickness even without an actual increase in size.
The diameter of the prosthesis is determined taking into account the dimensions of the corpora cavernosa, the clinical needs, and the patient’s anatomical characteristics. The choice of device seeks to balance safety and function according to the individual assessment.
When should you consult a specialist?
See a specialist when there is progressive loss of length, penile curvature, difficulty achieving an erection, or deformities.
Specialist evaluation is important to investigate the causes of these changes and determine the most appropriate treatment.
Fill out the pre-assessment form to schedule your appointment with Dr. Paulo Egydio, a specialist in penile prostheses.
Learn more:
- Inflatable penile prosthesis: types, how it works, surgery, costs
- Egydio Technique and Penile Prosthesis: understand the relationship and the importance of undergoing it
- Extender for penile prosthesis: risks and alternatives
- Penile Prosthesis for Erectile Dysfunction
