Last updated: May 18, 2026
Platelet-rich plasma (PRP) is an exciting development in regenerative medicine for erectile dysfunction (ED). ED is a consequence of the aging process that leads to impaired quality of small blood vessels and nerve fibers in penile tissue. Thanks to advances in regenerative medicine, PRP offers a promising biological treatment option.
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PRP is prepared from the patient’s own blood. A blood sample is centrifuged in a specialized container to separate layers by density. The resulting PRP layer is a concentrated yellow serum extremely rich in growth factors — biological molecules that have confirmed benefits for erectile function.

Benefits of Erectile dysfunction PRP — growth factor mechanisms
- Vascular Endothelial Growth Factor (VEGF) — stem cell proliferation and blood vessel regeneration
- Platelet-Derived Growth Factor (PDGF) — blood vessel regeneration and collagen regeneration
- Epidermal Growth Factor (EGF) — tissue healing and cellular renewal
- Insulin-like Growth Factor (IGF) — nerve regeneration and smooth muscle restoration
- Fibroblast Growth Factor (FGF) — prevents nerve degeneration and promotes nerve regeneration

PRP is administered via direct penile injection using the smallest available insulin needle, minimizing injection site discomfort. The injection sites and number of injections are planned by the andrologist. Clinical trials have addressed the key patient questions:
- Does PRP injection actually improve ED?
- Yes — confirmed clinically
- A single PRP session shows measurable clinical improvement at 4 weeks
- More sessions produce progressively better outcomes
- Dramatic improvement when combined with LI-ESWT (Low-Intensity Extracorporeal Shock Wave Therapy)
- What are the complications of PRP injection for ED?
- No serious complications reported
- Penile bruising in approximately 40% of patients — self-resolving
- Importantly: no patients experienced worsening of ED after PRP injection, making it a safe alternative to explore

For any questions about PRP injection for erectile dysfunction, discuss with your trusted andrologist or contact me through the social links on this website.
Frequently Asked Questions About PRP for Erectile Dysfunction
What is PRP and how does it treat erectile dysfunction?
PRP (Platelet-rich plasma) is a concentrated growth factor serum derived from the patient’s own blood. After centrifugation, the PRP layer is extracted and injected directly into the penile tissue using a fine needle. The growth factors (VEGF, PDGF, IGF, FGF, EGF) stimulate blood vessel regeneration, nerve fiber restoration, smooth muscle recovery, and collagen regeneration — all of which directly address the biological root causes of vasculogenic erectile dysfunction.
How effective is PRP injection for ED and how many sessions are needed?
Clinical trials confirm that a single PRP session produces measurable improvement in erectile function at 4 weeks post-treatment. Multiple sessions achieve progressively better outcomes. The combination of PRP injection with LI-ESWT (Low-Intensity Extracorporeal Shock Wave Therapy) produces dramatically superior results compared to either treatment alone. The number of sessions is individualized based on the severity of ED and the patient’s response.
Is PRP injection for erectile dysfunction safe?
Yes. No serious complications have been reported in published trials. The most common side effect is penile bruising in approximately 40% of patients, which is self-limiting and resolves without treatment. Crucially, no patients have experienced worsening of erectile function following PRP injection, making it a safe option even as a first exploratory treatment. Since PRP is derived from the patient’s own blood, there is no risk of allergic reaction or rejection.
If you are interested in PRP injection or other regenerative therapies for erectile dysfunction, Dr. Soarawee Weerasopone offers specialist consultations at Bangkok Hospital Headquarters. Book a Consultation.
Disclaimer: This content is written and reviewed by Dr. Soarawee Weerasopone, a board-certified urologist at Bangkok Hospital Headquarters. It is intended for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional before starting any medical treatment.
Medically written & reviewed by: Dr. Soarawee Weerasopone (Dr. Pom) — Board-Certified Urologist, Bangkok Hospital Headquarters. International Fellow: Baylor College of Medicine (USA) · Juntendo University (Japan) · Chang Gung Memorial Hospital (Taiwan).

Dr. Soarawee Weerasopone (Dr. Pom) is a board-certified urologist at Bangkok Hospital Headquarters, specializing in Men’s Health, Robotic Surgery (Da Vinci System), and Kidney Stone treatment. He has completed international fellowships at Baylor College of Medicine (USA), Juntendo University Hospital (Japan), and Chang Gung Memorial Hospital (Taiwan). All medical content on this site is written and reviewed by Dr. Soarawee based on his clinical experience and international training.

