Does stem cell therapy work for erectile dysfunction?
Early clinical trials for stem cell therapy in ED have shown promising results — particularly for men with ED caused by vascular damage (post-prostatectomy, diabetes-related, or cardiovascular ED). The mechanism involves promoting blood vessel repair and nerve regeneration in penile tissue. Results from small trials show improvements in erectile function scores (IIEF) at 6–12 months. Larger randomized controlled trials are needed to confirm these findings.
| ED Cause | Evidence Level | Common Protocol |
|---|---|---|
| Post-prostatectomy ED | Most studied | BMAC or UC-MSC injection |
| Vascular/cardiovascular ED | Moderate evidence | BMAC or PRP (P-Shot) |
| Diabetes-related ED | Early-stage | UC-MSC or BMAC |
| Psychogenic ED | Not appropriate | Stem cells target physical causes only |
What is the difference between the P-Shot and stem cell therapy for ED?
The P-Shot (Priapus Shot) uses PRP — platelet-rich plasma from your own blood — injected into penile tissue to promote vascular repair. It contains no stem cells. Stem cell therapy for ED uses BMAC or UC-MSCs and is believed to have stronger regenerative effects, particularly for nerve repair. PRP is more widely available and less expensive; stem cell therapy is typically reserved for more severe or treatment-resistant ED.
