We don’t perform shockwave therapy. Here’s the honest read on it anyway.
Shockwave — also sold as acoustic wave therapy, and under brand names such as GAINSWave — is a urology-specialty procedure. It is not performed at Castellano Health Institute, and Dr. Castellano refers to a vetted local urology practice when it is the appropriate next step. This page is here because you deserve a read on it from someone with nothing to sell you.
Castellano Health Institute · Garden Grove · Serving Orange County
Shockwave (acoustic wave) therapy, the P-Shot, PRP and penile injection therapy are not performed at this practice. They are urology-specialty procedures, and Dr. Castellano refers to a vetted local urology practice when one of them is the right next step. What happens here is the part that comes first: the medical evaluation that establishes what is actually driving the erectile dysfunction, and prescription management where that is the answer.
Low-intensity sound waves, aimed at blood vessels.
Low-intensity extracorporeal shockwave therapy delivers pulses of acoustic energy to penile tissue across a course of sessions. The proposed mechanism is that the pulses prompt the formation of new blood vessels and improve blood flow in tissue where the vascular supply has degraded. It is not a drug, it is not surgery, and it is generally well tolerated.
The important word in that description is vascular. This is a treatment aimed at one specific mechanism of erectile dysfunction. That is also its limit: it does nothing about a testosterone level, a medication side effect, untreated sleep apnea or a psychological driver. Which of those is actually in play is precisely what an evaluation establishes.
“GAINSWave” and similar names are marketing brands built on this technology rather than distinct procedures — clinics license the name. It is worth knowing that, because a brand is not a credential, and the questions worth asking are about device, protocol and evidence.
Promising for some men. Not settled for anyone.
Where it shows the most promise
The trials reporting benefit have concentrated on men with mild erectile dysfunction of vascular origin, often those who already respond at least partially to oral medication. The proposed mechanism — encouraging new blood-vessel formation in penile tissue — is biologically plausible and is where the research effort sits.
Where the evidence is weak
Erectile dysfunction driven by hormonal, neurological, medication-related or psychological causes is not what these trials studied. Severe disease and post-surgical cases have shown considerably less. A treatment aimed at blood vessels does not address a testosterone level or a prescription side effect.
How durable it appears to be
Reported improvements commonly diminish over the months following a course, and long-term follow-up is thin. That matters for a decision framed as a one-time investment — retreatment is a realistic prospect, and it should be priced into the decision before the first session rather than after.
How consistent the studies are
Energy levels, session counts, treatment intervals and devices differ substantially between studies, and many have been small. That variability is the core reason the guidance still reads investigational — not because results have been uniformly negative, but because they have not been uniform at all.
Low-intensity shockwave devices used for erectile dysfunction in the United States do not carry FDA approval for that indication — use for ED is off-label. The American Urological Association’s 2018 erectile dysfunction guideline states the therapy should be considered investigational, and the Sexual Medicine Society of North America’s position statement calls it experimental and recommends it be conducted under research protocols. That is not the same as calling it useless or unsafe. It means the evidence has not yet met the bar for a standard recommendation, and a clinic that leaves that out of the sales conversation has told you something about itself.
A treatment for the wrong cause is an expensive way to learn the cause.
Erectile dysfunction is a symptom, not a diagnosis. Before committing to a course of anything, the question worth answering is which mechanism is actually driving it — because shockwave targets exactly one of them. A man whose erectile dysfunction is driven by low testosterone, a blood-pressure medication or untreated sleep apnea can complete a full course of sessions and have changed nothing about the cause.
There is also the reason the evaluation matters beyond the erection itself. New erectile dysfunction in a man over 40 is one of the earliest physical signals of cardiovascular disease, frequently preceding a cardiac event by several years. Treating the symptom and skipping the workup spends that warning. That argument is set out in full on ED and heart disease, and the two most commonly missed reversible causes are covered on medications that cause ED and low testosterone.
If the workup lands on vascular disease and the standard oral medications are not the right fit or have not delivered, a urology referral is a reasonable next conversation — and Dr. Castellano makes it. The sequence is what matters: evaluation, then the treatment that matches what was found. The full ladder is on the ED evaluation page.
What men ask about shockwave.
Don’t see yours? Call the office and ask Dr. Castellano directly.
Does Dr. Castellano offer shockwave therapy or the P-Shot?
Does shockwave therapy work for ED?
Is shockwave therapy FDA-approved for erectile dysfunction?
What is GAINSWave?
Why does a men's health practice not offer it?
So what is worth doing first?
If I still want to try it, will you help?
Related in the ED knowledge cluster.
ED Evaluation with Dr. Castellano
The hub page — the workup, the treatment ladder, and where referrals go.
ED and Heart Disease
Why the evaluation matters beyond the erection itself.
Medications That Cause ED
The reversible cause a procedure cannot fix.
Sudden Erectile Dysfunction
When it arrives abruptly, the cause list changes shape.
Start with what is causing it.
The one-hour consultation with Dr. Castellano establishes what is actually driving the erectile dysfunction — hormonal, vascular, metabolic, medication-related or otherwise. Where a urology procedure is the right next step, the referral goes to a vetted local urology practice. Where it is not, you will be told that too.
Mon–Fri 9 AM – 5 PM · Serving Orange County