Study summary
After platelet-rich plasma injections, sperm was found in some men whose earlier surgery failed
16–28%had sperm found at repeat surgery
What was tested
Platelet-rich plasma, made from the man's own blood, injected into the testis before a repeat micro-TESE. No comparison group.
What they found
- Sperm was found in 27.5% of men with one earlier failed surgery and 16.4% of men with two or more.
- There was no untreated group, and repeat surgery alone finds sperm in some men.
- A 2026 review calls the approach investigational.
What it means
Not evidence that PRP works. A randomized trial is needed; a small pilot at Stanford is running.
Last reviewed 2026-11-14 by the Find a Trial editorial team.
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