Written and medically reviewed by David Nazarian, MD — Board Certified in Internal Medicine and Medical Director of PRP Treatment Beverly Hills. Last medically reviewed: October 2026.
Quick answer: There is no universally accepted evidence-based “ideal candidate” for PRP injections for erectile dysfunction because PRP remains investigational. Published studies have generally focused on men with mild to moderate organic or vasculogenic ED. The more important first step is determining why ED is occurring.
Why the cause of ED matters
Erectile dysfunction can be associated with vascular disease, diabetes, hypertension, medication effects, low testosterone, neurologic disease, pelvic surgery, sleep problems, smoking, obesity, psychological factors, and relationship factors. A treatment decision is stronger when it follows a diagnosis rather than simply a symptom.
Men who may be considered for a discussion about PRP
In research and clinical discussions, PRP is most often considered in men with mild to moderate erectile dysfunction who understand that the evidence is limited and who want to discuss investigational options alongside standard care. Men who have not been properly evaluated, have severe untreated cardiovascular risk, active infection, bleeding disorders, platelet disorders, or certain hematologic conditions may need additional evaluation or may not be appropriate candidates.
What if Viagra or Cialis is not working?
Failure of sildenafil or tadalafil does not automatically mean PRP is the next step. Dose, timing, sexual stimulation, medication interactions, vascular disease, diabetes, testosterone deficiency, neurologic disease, and post-prostate treatment changes should be reviewed first. Read our PRP vs Viagra and Cialis comparison.
What I evaluate before discussing PRP
- Pattern and duration of ED
- Cardiovascular and metabolic risk factors
- Medication and supplement review
- Testosterone testing when clinically appropriate
- Prior response to PDE5 inhibitors
- History of pelvic surgery or neurologic disease
- Expectations and understanding of the investigational evidence
“The most important question is not whether someone can receive PRP. It is why the erectile dysfunction is occurring and whether we have addressed established causes and treatments first.” — David Nazarian, MD
Learn more on our main PRP for erectile dysfunction page.
Important: PRP for sexual-function concerns is investigational/off-label. Evidence is limited and heterogeneous, and PRP should not be presented as a proven cure or replacement for established evaluation and treatment.
