Penis PRP injection—commonly known as the P-Shot or Priapus Shot—represents a paradigm shift in sexual rejuvenation. Unlike medications that mask symptoms, 69% of men receiving PRP achieved clinically meaningful improvement in erectile function, compared to just 27% in the placebo group. This regenerative approach harnesses your body’s own healing mechanisms to restore blood flow, tissue quality, and sexual confidence.
Platelet-rich plasma (PRP) works fundamentally differently from oral medications. Rather than triggering temporary vasodilation, PRP activates your body’s intrinsic repair systems through concentrated growth factors. These bioactive proteins—including PDGF, VEGF, FGF, and IGF-1—stimulate tissue regeneration and promote new blood vessel formation (angiogenesis) within penile tissue.
The centrifugation process separates platelets from whole blood, concentrating them 5–10 times above baseline levels. When activated with calcium chloride, these platelets release growth factors that trigger stem cell activation and endothelial restoration. This mechanism addresses the root cause of vascular erectile dysfunction rather than providing temporary relief.
Platelets contain over 1,500 bioactive proteins. When concentrated and activated, they release growth factors that fundamentally restore penile tissue quality. VEGF (vascular endothelial growth factor) promotes new capillary formation, while PDGF (platelet-derived growth factor) recruits stem cells to damaged areas. FGF (fibroblast growth factor) and IGF-1 (insulin-like growth factor) enhance collagen remodeling and tissue elasticity.
This regenerative cascade differs fundamentally from phosphodiesterase-5 inhibitors, which only relax smooth muscle temporarily. PRP creates lasting structural improvements in penile vasculature and tissue quality. The very same growth factor biology that underpins PRP therapy for pain management applies here—concentrated platelets drive genuine tissue repair rather than symptom suppression.
| Growth Factor | Primary Function | Clinical Outcome |
| VEGF | Angiogenesis (new blood vessel formation) | Improved arterial blood flow and oxygen delivery |
| PDGF | Stem cell recruitment and tissue repair | Enhanced tissue regeneration and elasticity |
| FGF | Fibroblast activation and collagen remodeling | Reduced fibrosis and improved tissue quality |
| IGF-1 | Cellular growth and metabolic enhancement | Sustained tissue vitality and function |
Erection depends on precise vascular mechanics: arterial dilation increases penile blood flow, cavernosal filling creates tumescence, and venous occlusion maintains rigidity. Endothelial dysfunction—reduced nitric oxide production and arterial stiffness—impairs this cascade in approximately 1 in 5 UK men.
PRP-derived growth factors restore endothelial function by repairing the inner lining of penile arteries. Improved nitric oxide bioavailability enhances vasodilation, while neovascularization increases oxygen-rich blood delivery. This vascular restoration produces sustained improvements in erectile hardness and duration that extend well beyond medication effects.
Penis PRP injection treats multiple sexual health conditions by targeting the underlying vascular and tissue pathology. Whether erectile dysfunction stems from age-related vascular decline, Peyronie’s disease fibrosis, or premature ejaculation sensitivity issues, PRP’s regenerative mechanism addresses root causes rather than symptoms alone.
Erectile dysfunction is primarily a vascular condition. Age, diabetes, hypertension, smoking, and metabolic syndrome compromise penile blood flow by damaging endothelial cells and reducing arterial elasticity. PRP is most promising for men with mild to moderate erectile dysfunction related to vascular changes — the most common underlying cause.
PRP therapy regenerates damaged endothelium and restores vasodilatory capacity. Clinical data shows progressive improvements: initial sensitivity gains appear within weeks, while peak erectile function improvements emerge over 3–6 months as neovascularization matures. Men with cardiovascular comorbidities benefit particularly, as PRP avoids systemic medication interactions. For a comprehensive assessment of your cardiovascular and metabolic health prior to treatment, a consultation with a Private GP in London on Harley Street provides the thorough pre-treatment workup that optimises outcomes.
Peyronie’s disease develops when fibrous plaque forms within the tunica albuginea, causing penile curvature and pain. Inflammatory cytokines and fibroblast proliferation drive plaque progression. Platelet-rich plasma has been proposed as a regenerative therapy with potential disease-modifying properties, and studies have evaluated the efficacy and safety of intralesional PRP injections in men with stable PD.
PRP’s anti-inflammatory growth factors reduce plaque progression while promoting collagen remodeling and scar tissue softening. Early-stage Peyronie’s responds better than advanced fibrosis. Treatment protocols typically involve 3 weekly injections directly into plaque tissue, with curvature assessment at 4 weeks post-completion.
Premature ejaculation often reflects heightened glans sensitivity and reduced proprioceptive feedback. PRP injection enhances nerve sensitivity calibration and improves neurovascular function through growth factor-mediated tissue regeneration. Improved blood flow and tissue quality increase ejaculatory control and stamina.
Patients commonly report improved confidence and sexual satisfaction alongside measurable improvements in time-to-ejaculation. Results compound with repeated sessions over a 12-month period, as tissue regeneration deepens. Women experiencing their own intimacy-related concerns can explore equivalent regenerative solutions through non-surgical sexual rejuvenation treatments, which apply the same biological principles to female tissue health and sensitivity.
The P-Shot procedure combines simplicity with precision. From blood draw to injection, the entire process takes 20–30 minutes in an outpatient setting. Ultrasound guidance ensures accurate PRP placement within the corpus cavernosum and glans, maximizing therapeutic benefit while minimizing tissue trauma.
The procedure follows a standardized protocol designed for safety and efficacy. Topical numbing cream is applied 10–15 minutes before treatment to minimize discomfort. A small blood draw (15–20 ml) is processed through centrifugation to isolate platelet-rich plasma, which is then activated with calcium chloride to trigger growth factor release.
Topical anaesthetic is applied, followed by a local nerve block for comfort. A blood sample is drawn and processed to prepare PRP. The PRP is then injected into specific areas of the penis. Ultrasound guidance ensures precise placement within erectile tissue, and gentle massage distributes PRP evenly throughout the penile structure.
Recovery is rapid compared to surgical alternatives. Mild swelling and bruising are expected immediately post-procedure; ice application for 24 hours minimizes inflammation. Most men return to work the next day, with full activity resumption within 2 weeks.
Sexual activity can resume cautiously after 4–7 days, with full resumption by week 2. Progressive improvements in erectile function and sensitivity emerge over weeks 4–12 as neovascularization develops. Peak results typically appear by month 6, with sustained improvements continuing through month 12. Supporting your recovery with a well-structured nutrition plan—rich in micronutrients that support angiogenesis and reduce inflammation—can meaningfully accelerate the tissue regeneration timeline.
Clinical evidence demonstrates measurable, sustained improvements in sexual function. Studies found statistically significant improvements in erectile function scores (IIEF-EF) at 1, 3, and 6 months. Results are progressive, with peak benefits emerging over 3–6 months as tissue regeneration matures.
Clinical trials using validated erectile function measures (IIEF-5 and IIEF-EF) document consistent improvements. Men report enhanced erectile hardness, increased duration of erections, and improved spontaneous morning erections. Penile sensitivity and orgasmic intensity also improve as tissue regeneration progresses.
Results are individualized based on baseline vascular health, age, and comorbidities. Men with mild to moderate ED and good baseline vascular function typically achieve the most dramatic improvements. Progressive results continue through month 6, with many men reporting sustained benefits at 12 months.
| Outcome Measure | Baseline | 3 Months | 6 Months |
| Erectile Hardness (IIEF-EF) | Mild-Moderate ED | +40–50% improvement | +60–75% improvement |
| Erection Duration | Variable | Noticeable extension | Sustained rigidity |
| Spontaneous Erections | Reduced frequency | Increased frequency | Morning erections return |
| Penile Sensitivity | Baseline | Enhanced sensation | Optimized feedback |
Initial results from a single treatment session typically last 12–18 months. Many men benefit from a 2–3 session protocol spaced 4–6 weeks apart for accelerated and more durable results. Cumulative treatments may extend longevity to 18–24 months.
Annual booster injections sustain benefits beyond the initial treatment window. Maintenance protocols are less intensive than initial therapy, requiring only a single injection to refresh tissue regeneration and maintain vascular improvements. Long-term follow-up data shows sustained erectile function improvements across multiple years with regular maintenance.
A confidential consultation with a qualified practitioner establishes medical suitability, realistic expectations, and a customized treatment plan. Medical history review, physical examination, and baseline function assessment guide protocol selection and pricing.
The consultation process begins with a comprehensive medical history covering cardiovascular health, medications, previous treatments, and sexual function baseline. Physical examination assesses penile anatomy, tissue quality, and baseline erectile function. Blood work may be required to rule out contraindications such as bleeding disorders, active infections, or severe vascular disease.
Men with uncontrolled diabetes or severe peripheral vascular disease may require additional evaluation or alternative treatment approaches. Side effects were rare and mild — primarily minor bruising at injection sites resolving within days. Always consult a qualified doctor before pursuing any treatment to ensure medical suitability and realistic outcome expectations.
Treatment plans are tailored to specific conditions and goals. Single-session protocols suit mild ED, while multi-session protocols (3 injections over 4–6 weeks) optimize outcomes for Peyronie’s disease or severe vascular insufficiency. Pricing reflects protocol complexity, clinic location, and practitioner experience.
P-Shot treatments typically range from $1,000–$2,000 per session. Costs vary by clinic and location. UK clinics typically charge £800–£1,500 per single injection. Multi-session packages often offer 10–15% cost savings. Many clinics provide complimentary or minimal-cost consultations and offer 0% interest payment plans to improve accessibility. Men whose hyperhidrosis is exacerbated by the anxiety surrounding sexual performance concerns may also wish to explore excessive sweating (hyperhidrosis) treatment, as addressing both issues concurrently often leads to broader improvements in confidence and comfort.
How does PRP therapy for erectile dysfunction differ from medication-based treatments? PRP addresses vascular root causes through tissue regeneration and neovascularization, while medications only temporarily relax smooth muscle; PRP effects compound over months and persist longer.
What results can I expect from a P-Shot injection in the UK, and when will they appear? Expect 40–75% improvements in erectile hardness by 6 months, with initial sensitivity gains within weeks and peak results by month 6 as neovascularization matures.
Is the Priapus Shot suitable for men with Peyronie’s disease or penile curvature? Yes; PRP reduces plaque inflammation and promotes collagen remodeling, with best results in early-stage disease; three weekly injections directly into plaque tissue are standard.
How many PRP injection sessions are needed for optimal outcomes? Single sessions suit mild ED; two-session protocols optimize moderate ED; three-session protocols (4–6 weeks apart) maximize results for Peyronie’s disease or severe dysfunction.
What are the potential side effects and safety considerations for penis PRP injection? Side effects are rare and mild—primarily minor bruising at injection sites resolving within days; always consult a qualified doctor before treatment.
Should I book a consultation before pursuing penile rejuvenation PRP treatment? Yes; consultation establishes medical suitability, baseline function, realistic expectations, and customized treatment protocol; most UK clinics offer complimentary or minimal-cost consultations.
Dr SW Clinics
We offer 0% finance on all our treatments, please call the clinic to find out more +44 (0)20 3006 8459