The P-Shot for men uses platelet-rich plasma, or PRP, prepared from a patient's own blood and injected into penile tissue. The treatment is offered primarily to men interested in improving erectile function or exploring regenerative approaches to sexual health.
There is a biological rationale behind it, and several clinical studies have reported encouraging results. There is also something patients should know before paying for treatment: the research is not settled.
Randomized trials have produced conflicting findings. Some report meaningful improvement in erectile-function scores, while another well-designed placebo-controlled trial found no significant advantage for PRP. Current European urology guidelines therefore describe PRP as a developing treatment with limited evidence rather than a standard first-line therapy.
At Upper Room Clinic, our P-Shot treatment in Toronto is provided within a physician-led regenerative medicine program. The first question is not simply whether PRP is available. It is whether it makes sense for the individual patient.
What Is Actually Injected During a P-Shot?
The material injected during a P-Shot comes from your own blood.
The Blood Is Processed to Concentrate Platelets
A small blood sample is collected and processed to separate platelet-rich plasma from other components of the blood.
Platelets are best known for their role in clotting, but they also contain proteins and signalling molecules involved in normal healing and tissue repair.
PRP has been studied and used in areas such as sports medicine and orthopaedics for years. Applying platelet-rich plasma therapy to erectile tissue is a newer use.
The idea is that concentrated platelets may influence vascular and tissue responses after they are injected into the treatment area.
How Might PRP Affect an Erection?
An erection depends on several systems working together.
Blood vessels have to respond appropriately. Smooth muscle within erectile tissue has to relax. Nerve signalling matters. Hormonal, psychological and cardiovascular factors can matter too.
Researchers Are Interested in Blood Vessel and Tissue Repair
Laboratory research suggests growth factors released by platelets may influence processes such as angiogenesis, which is the formation of new blood vessels, as well as cellular repair.
That gives researchers a reason to study PRP for erectile dysfunction.
It is worth emphasizing the word study.
A convincing biological mechanism does not guarantee that a procedure will produce a clinically meaningful change in every patient.
That requires evidence from human trials.
Does the P-Shot Actually Help Erectile Dysfunction?
The shortest accurate answer is: it may help some men, but we cannot say that it reliably works for everyone.
Some Randomized Studies Have Been Positive
A randomized controlled study published in Urology reported improvements in erectile-function scores and other measures after PRP compared with placebo. Reviews pooling several studies have also found overall signals suggesting potential benefit.
That is why P-Shot benefits continue to be studied rather than dismissed outright.
Another Placebo-Controlled Trial Found No Significant Difference
In a 2023 randomized trial involving 61 men, researchers compared PRP injections with placebo. At one month, there was no significant difference between the groups in the percentage of men achieving the study's minimum clinically important improvement.
This is an important result because placebo-controlled studies help separate the effect of the procedure from expectations and normal variation.
Different PRP preparation methods may also be part of the problem. There is no single universal protocol for platelet concentration, volume, number of injections or treatment frequency.
That makes one study difficult to compare directly with another.
Who Might Consider a P-Shot Treatment?
Most clinical research has focused on men with mild-to-moderate erectile dysfunction.
Erectile Dysfunction Should Be Assessed First
Before considering a P-Shot for erectile dysfunction, we want to understand why erectile function has changed.
ED can be associated with:
- Cardiovascular and vascular disease
- Diabetes
- Hormonal issues
- Medication
- Neurological conditions
- Psychological factors
- Pelvic surgery or injury
- Multiple factors occurring together
That matters because an injection does not address every possible cause.
Current European guidelines continue to recommend established approaches such as PDE5 inhibitors when medically appropriate, while placing regenerative approaches including PRP in a much less certain evidence category.
Why Can Erectile Dysfunction Be a Broader Health Issue?
Sometimes ED is the symptom that brings someone into a clinic. It should not automatically be treated as an isolated performance issue.
Blood Vessel Health Matters
The vascular system plays a central role in erections.
That means erectile changes can occur alongside cardiovascular risk factors such as high blood pressure, diabetes, smoking and metabolic disease.
A thoughtful men's sexual health assessment may therefore include medical history, medications, cardiovascular risk factors, hormone questions and other symptoms.
The goal is to understand the person before deciding on the procedure.
Does the P-Shot Permanently Increase Penis Size?
This is one area where marketing can get ahead of the research.
Reliable Permanent Enlargement Has Not Been Established
PRP studies have concentrated mainly on erectile function rather than predictable increases in anatomical length or girth.
If an erection becomes firmer in someone who responds to treatment, the penis may appear fuller during erection. That is not the same as demonstrating permanent structural enlargement.
Anyone considering the procedure mainly for size should be particularly careful about guaranteed measurements or dramatic before-and-after claims.
Are PRP Injections for Men Safe?
Because the plasma comes from the patient's own blood, an allergic response to the PRP itself is less of a concern than it would be with many foreign substances.
That does not mean the procedure is risk-free.
It Is Still an Injection Into Sensitive Tissue
Possible effects can include temporary:
- Soreness
- Bruising
- Swelling
- Bleeding
- Tenderness
Infection is also a potential risk whenever skin is penetrated.
Most published studies report relatively few serious adverse events, but the long-term evidence base remains smaller than it is for established ED therapies. Recent European urology discussions have also raised concerns about plaque formation reported in regenerative-treatment research.
What Happens During a P-Shot at Upper Room Clinic?
At Upper Room Clinic, treatment begins with an assessment rather than an automatic injection.
We Prepare PRP From the Patient's Own Blood
For appropriate candidates, blood is drawn and PRP is prepared before the treatment area is numbed and the injections are performed.
Upper Room Clinic uses the Arthrex Angel system for PRP preparation and provides the service at its Toronto and Oakville clinics. The clinic also states clearly that individual results vary and that no outcome is guaranteed.
You can review the full P-Shot Toronto service before booking.
How We Think About the P-Shot
At Upper Room Clinic, we think patients deserve both sides of this conversation.
PRP is an interesting area of regenerative medicine. There are studies showing improvement, and there are men for whom the treatment may be worth considering.
There are also negative trials, unanswered questions about protocols and limited long-term evidence.
We would rather explain that uncertainty than turn an evolving therapy into a promise.
For someone considering PRP injections for men, the useful next step is a medical conversation about the cause of the symptoms, previous treatments, cardiovascular and hormonal health, expectations and the alternatives available.
Then we can decide whether the P-Shot belongs in that plan.
This article is for educational purposes and is not a substitute for individual medical advice.
