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.
My approach: I do not start with the question, “Can PRP be injected here?” I start with, “What is the diagnosis, what does the evidence show for this diagnosis, what has already been tried, and is PRP likely to add meaningful value compared with established options?”
Step 1: Confirm the diagnosis
PRP is not one treatment for every painful joint, tendon problem, hair-loss pattern, aesthetic concern, or sexual-health symptom. The same symptom can have very different causes. Examination, prior records, laboratory testing, ultrasound, X-ray, MRI, or specialist evaluation may be appropriate depending on the concern.
Step 2: Ask how strong the evidence is for that indication
The evidence for PRP varies substantially by condition. There is stronger evidence for some applications than others, while several uses remain investigational. I prefer to explain that difference directly rather than treating every PRP indication as equally established.
Step 3: Compare PRP with established alternatives
The meaningful question is not simply whether PRP can help. It is whether PRP makes sense compared with rehabilitation, medication, another injection, surgery, hormone treatment, hair-loss medication, or another evidence-based option.
Step 4: Look at the patient, not just the procedure
Age, disease severity, medical conditions, medications, platelet or bleeding issues, treatment goals, previous response to therapy, and willingness to participate in rehabilitation can all affect whether PRP is a reasonable option.
Step 5: Define what success would actually mean
Before treatment, I want a clear goal: less pain, better function, improved hair density, or another measurable outcome. If there is no meaningful benefit, repeating a procedure indefinitely is not a treatment plan.
When I would tell a patient not to do PRP
I would advise against PRP when the diagnosis is unclear, when another treatment is better supported, when surgery is clearly indicated, when the expected benefit is too uncertain for the cost and burden, or when a medical contraindication makes the procedure inappropriate.
Explore our general PRP guide, what to expect at a PRP visit, and PRP pricing.
