What Happens to Natural Erections After Penile Implant Surgery?
One of the most important questions to understand before penile implant surgery is:
“Will I still be able to have a natural erection after the implant is inserted?”
The short answer is that a penile implant should be considered a replacement for natural erectile rigidity rather than something that simply sits alongside normal erectile function.
After penile implant surgery, you should not expect to retain the ability to produce a normal, rigid natural erection through the erectile tissue of the penis. Implant surgery permanently changes the corpora cavernosa — the two erectile chambers that normally fill with blood to produce an erection.[1-4]
However, this does not mean that every natural part of sexual arousal disappears. Some men still notice penile fullness, warmth or swelling during sexual stimulation, and the head of the penis may still become engorged because these tissues are not directly inflated by the implant.[5-7]
Understanding this difference is important when deciding whether a penile implant is appropriate.
How does a natural erection normally occur?
A natural erection depends on a coordinated interaction between the brain, nerves, blood vessels and erectile tissue.
During sexual stimulation, nerve signals cause the smooth muscle within the penis to relax. Blood then enters the corpora cavernosa — two cylindrical erectile chambers running along the shaft of the penis.
As these chambers expand, pressure increases and blood becomes trapped within the penis, producing rigidity.
Conditions such as diabetes, cardiovascular disease, pelvic surgery, nerve injury, Peyronie’s disease or long-standing erectile dysfunction can interfere with this process.
This is why treatments such as sildenafil, tadalafil and penile injections depend, to varying degrees, on functioning erectile tissue and blood flow.
A penile implant works differently.
What changes when a penile implant is inserted?
During penile implant surgery, cylinders are placed inside the corpora cavernosa.
With a three-piece inflatable penile implant, these cylinders can be filled with fluid using a pump positioned within the scrotum. This creates penile rigidity mechanically rather than relying on the penis to trap enough blood for a natural erection.[1-4]
The implant therefore takes over the structural role previously performed by the erectile chambers.
International consensus recommendations specifically emphasise that patients should understand the irreversible nature of this operation. Pre-existing natural erectile capability should be expected to be lost following implantation, and removal of the device later would not normally restore natural erectile function.[3,4]
This is one reason realistic preoperative counselling is so important.
If you are still obtaining useful natural erections and are considering surgery primarily because erections have become inconsistent, it is particularly important to discuss the implications before deciding to proceed.
You can read more about when a penile implant may be worth considering.
Can spontaneous erections still happen after an implant?
This is where the answer becomes more nuanced.
A man may still notice spontaneous penile swelling or tumescence even when the implant has not been inflated.
An older study of men with three-piece inflatable implants found that some reported spontaneous tumescence after surgery.[5] This does not mean that the corpora cavernosa were producing a normal functional erection in the same way as before implantation.
Instead, remaining vascular tissue around the implant, the corpus spongiosum and the glans may still respond to sexual stimulation or normal physiological changes in blood flow.
Therefore, after an implant you might notice:
morning fullness around the penis, some enlargement during sexual arousal, increased warmth or blood flow, or engorgement of the glans.
These changes should not be confused with preservation of a normal natural erection capable of reliably producing shaft rigidity without the implant.
For sexual activity, the implant becomes the principal mechanism providing penile rigidity.
What happens to the head of the penis?
The implant cylinders are positioned within the corpora cavernosa of the penile shaft. They do not extend into or directly inflate the glans — the head of the penis.
The glans and the tissue immediately beneath it, known as the corpus spongiosum, retain their own blood supply.
This means the glans may still become fuller during sexual stimulation even when the shaft is made rigid by the implant.[6,7]
The amount of glans engorgement varies considerably between men.
Some experience noticeable enlargement and firmness. Others find that the glans remains relatively soft despite having an adequately inflated implant.
A 2026 patient-reported study suggested that reduced glans engorgement after penile prosthesis surgery may be more common than previously appreciated, although this was a relatively small single-centre study and further research is required.[6]
A soft glans does not automatically mean that the implant is too short or incorrectly positioned.
There is also an important distinction between a glans that is simply softer and a glans that bends or droops excessively despite a fully rigid shaft.
I have discussed this separately in Why Is the Head of My Penis Still Soft With a Penile Implant?.
Do ED tablets still cause an erection after an implant?
Medicines such as sildenafil or tadalafil should not be expected to recreate normal cavernosal rigidity once a penile prosthesis has been implanted.
The implant now provides that rigidity mechanically.
However, these medications can increase blood flow to erectile tissues that remain outside the implant cylinders. A small study found that sildenafil increased glans tumescence in some men with penile prostheses and was associated with improved sexual satisfaction in responders.[7]
This is a different goal from treating erectile dysfunction before implantation.
Medication after an implant is not required routinely, is not appropriate for everyone and should only be considered after individual medical assessment.
What happens to sensation?
A penile implant is designed primarily to change rigidity.
The cylinders are inserted within the erectile chambers rather than intentionally altering the main sensory nerves of the penis.
For this reason, penile sensation can remain after implant surgery.
However, sensation is influenced by many factors other than the implant itself. Diabetes, neurological disease, previous pelvic surgery, prostate cancer treatment, penile surgery and other medical conditions can already affect sensation before implantation.
No operation can guarantee that sensation will remain completely unchanged.
Can you still have an orgasm with a penile implant?
A penile implant does not mechanically create an orgasm, but it also does not normally remove the neurological pathways responsible for orgasm.
If a man can experience orgasm before implant surgery, he may continue to experience orgasm afterwards.[8,9]
Older clinical studies examining sexual function after prosthesis implantation found that implantation itself generally did not prevent orgasm.[8]
However, orgasm can already be altered by prostate surgery, neurological conditions, medications, hormonal problems and other illnesses.
The purpose of the implant is therefore to restore penile rigidity — not to directly restore libido, sensation or orgasm that has been lost for another reason.
Can you still ejaculate?
In men who still have normal ejaculatory anatomy and function, penile implant surgery does not usually prevent ejaculation.[8,9]
The implant is placed within the corpora cavernosa and does not normally interfere directly with the urethra, prostate, seminal vesicles or the neurological pathways responsible for ejaculation.
There are important exceptions.
For example, men who have previously undergone radical prostatectomy no longer produce semen in the usual way because the prostate and seminal vesicles have been removed. They may still experience orgasm, but it is usually a dry orgasm.
If your erectile dysfunction developed following prostate surgery, see Erectile Dysfunction After Radical Prostatectomy and Penile Implant After Prostatectomy.
Does a penile implant allow natural erection recovery to continue?
This is an especially important question for men whose erectile function may still be recovering after prostate surgery, pelvic injury or another neurological event.
Once a penile prosthesis has been inserted, it should not be viewed as a temporary treatment while waiting to see whether normal erections return.
Implantation permanently changes the erectile chambers. Current international recommendations therefore describe the procedure as essentially irreversible with respect to normal physiological erections.[2-4]
For someone who still has a reasonable possibility of recovering useful spontaneous erections, the timing of implant surgery deserves careful consideration.
Conversely, some men with severe long-standing erectile dysfunction decide that dependable mechanically produced rigidity is more important to them than continuing to wait for uncertain natural recovery.
There is no single correct timing for everyone.
What if the implant is removed later?
Removal of an implant does not normally return the penis to its pre-implant erectile state.
The corporal tissues have been surgically altered and can develop fibrosis following implantation, removal or infection.[3,4]
If a penile implant ever requires removal because of infection, erosion, mechanical problems or another complication, subsequent management can therefore be considerably more complex.
This is another reason implantation should be regarded as a long-term surgical decision rather than a reversible trial.
Will the implanted erection feel exactly like a natural erection?
Not necessarily.
An inflatable penile implant can provide substantial shaft rigidity, but an implant-assisted erection is physiologically different from a natural erection.
The shaft is being supported by hydraulic cylinders rather than entirely by blood trapped within the corpora cavernosa. Glans fullness may differ. Penile dimensions may also be different from erections remembered from years earlier.
The aim of surgery is dependable functional rigidity within the anatomy present at the time of implantation. It is not a penile enlargement operation and cannot guarantee restoration of previous penile length, girth or appearance.
For more detail, see Will a Penile Implant Make My Penis Shorter?.
The key distinction: natural arousal can remain, natural rigidity does not
Perhaps the easiest way to understand penile implant surgery is to separate arousal from rigidity.
Sexual desire can remain. Penile sensation can remain. Orgasm can remain. Ejaculation can remain when the relevant anatomy and nerves are intact. Natural blood flow to the glans and surrounding tissues can also remain.
What changes fundamentally is the mechanism producing shaft rigidity.
After implantation, the penile prosthesis becomes the primary method of producing the rigid shaft required for penetrative sexual activity.[1-4]
That is why a penile implant can work even when tablets, injections or damaged erectile nerves can no longer produce a dependable erection.
Considering penile implant surgery in Brisbane?
Penile implant assessment involves more than deciding whether an implant can technically be inserted.
The discussion should include the severity and cause of erectile dysfunction, remaining natural erectile function, previous response to tablets or injections, penile length and shape, Peyronie’s disease where present, previous prostate or pelvic surgery, expectations regarding glans engorgement and the irreversible nature of implantation.
Patients can review the main Penile Implant Surgery Brisbane information and the Penile Implant Recovery Guide before consultation.
For men travelling from regional Queensland, interstate or overseas, assessment and review of relevant records may be able to begin before significant travel arrangements are made. International patients can review the dedicated International Penile Implant Surgery pathway.
If you would like an individual assessment of erectile function and whether implant surgery is appropriate, you can request an appointment.
Frequently asked questions
Can I still wake up with a morning erection after a penile implant?
You may notice spontaneous fullness or swelling, including in the morning, because some penile tissues retain their natural blood supply. However, you should not expect a normal rigid cavernosal erection without using the implant.[3-5]
Will sexual stimulation make the implant inflate?
No. An inflatable penile implant does not automatically inflate in response to sexual stimulation. The pump must be operated manually to move fluid into the cylinders.
Does the implant affect libido?
The implant does not directly increase or reduce testosterone or sexual desire. Libido is influenced by hormonal, psychological, relationship, medication and general health factors.
Can I still get glans engorgement?
Yes, some men continue to develop glans fullness during arousal because the glans retains its natural blood supply. The degree of engorgement varies and some men notice considerably less glans firmness after implantation.[6,7]
Could I have an implant removed if I changed my mind?
Removal is technically possible when medically required, but implantation should not be regarded as reversible. Removing the device does not normally restore natural erectile function.[3,4]
Should I wait longer if I still sometimes have natural erections?
That depends on why your erections are impaired, their reliability, the likelihood of further recovery and how acceptable non-surgical treatments are to you. Preserving meaningful natural erectile function is an important part of the discussion before committing to irreversible implant surgery.
Take-home message
A penile implant replaces the mechanism responsible for natural shaft rigidity.
After surgery, you should not expect to retain a normal functional natural erection, even if you still experience spontaneous penile fullness or glans engorgement during arousal.
Sensation, orgasm and ejaculation can often remain when they were intact beforehand because an implant principally treats erectile rigidity rather than these other components of sexual function.
Understanding this distinction before surgery is an important part of informed decision-making.
References
European Association of Urology. EAU Guidelines on Sexual and Reproductive Health. Arnhem: EAU Guidelines Office; 2026.
Burnett AL, Nehra A, Breau RH, Culkin DJ, Faraday MM, Hakim LS, et al. Erectile dysfunction: AUA guideline. J Urol. 2018;200(3):633-641. doi:10.1016/j.juro.2018.05.004.
Köhler TS, Munarriz R, Parker J, Bettocchi C, Hatzichristodoulou G, Martins FE, et al. Penile prosthesis for erectile dysfunction: recommendations from the 5th International Consultation on Sexual Medicine. Sex Med Rev. 2025;13(2):144-171. doi:10.1093/sxmrev/qeaf001.
Chung E, Bettocchi C, Egydio P, Love C, Osmonov D, Park S, et al. The International Penile Prosthesis Implant Consensus Forum: clinical recommendations and surgical principles on the inflatable 3-piece penile prosthesis implant. Nat Rev Urol. 2022;19:534-546. doi:10.1038/s41585-022-00607-z.
Manning M, Martínez FJ, Alken P, Jünemann KP. Spontaneous tumescence after implantation of three-piece hydraulic penile prostheses: a short-term experience. Int J Impot Res. 2003;15(3):152-155. doi:10.1038/sj.ijir.3900979.
Michael S, Hay J, Maher E, Zarnani F, Haider A, Modgil V, et al. Soft glans after penile prosthesis surgery: a patient-reported study of prevalence and clinical impact. Int J Impot Res. 2026. doi:10.1038/s41443-026-01263-2.
Mulhall JP, Jahoda A, Aviv N, Valenzuela R, Parker M. The impact of sildenafil citrate on sexual satisfaction profiles in men with a penile prosthesis in situ. BJU Int. 2004;93(1):97-99. doi:10.1111/j.1464-410X.2004.04564.x.
Coleman E, Listiak A, Braatz G, Lange P. Effects of penile implant surgery on ejaculation and orgasm. J Sex Marital Ther. 1985;11(3):199-205. doi:10.1080/00926238508405446.
Bae JH, Song PH, Kim HT, Moon KH. Assessment of erectile and ejaculatory function after penile prosthesis implantation. Korean J Urol. 2010;51(3):202-207. doi:10.4111/kju.2010.51.3.202.
Medical disclaimer
This article provides general educational information and does not replace individual medical advice, diagnosis, examination or informed consent. Penile implant surgery is an invasive and essentially irreversible treatment with potential risks including infection, bleeding, pain, tissue or urethral injury, erosion, device positioning problems, mechanical failure and the possibility of future revision or removal. Individual outcomes, sexual function and suitability for surgery vary. Patients considering penile implant surgery should discuss the potential benefits, limitations, alternatives and individual risks with an appropriately qualified medical practitioner.
