Orthopedic PRP
    Orthopedic PRP

    PRP Injection Recovery: What to Expect in the Days and Weeks After

    What should you expect after a PRP injection? Here's a complete recovery timeline covering pain, activity restrictions, and tips that speed healing.

    March 6, 2026
    Knowing what to expect after a PRP injection removes a lot of anxiety from the process. The first week is uncomfortable — planned discomfort that indicates the treatment is working. What you do in the weeks after injection significantly affects how well PRP works. Here is a clear, practical breakdown of what recovery looks like.
    Following PRP recovery guidelines helps maximize the regenerative response
    Following PRP recovery guidelines helps maximize the regenerative response

    The PRP Recovery Timeline: Day by Day

    Day 1 (injection day). You will feel the injection itself and may notice soreness within a few hours as the anesthetic wears off. Some joint swelling is normal. Rest and ice the area for 15 to 20 minutes every 2 to 3 hours. Avoid driving if the injection was in a lower extremity and your mobility is affected.
    Days 2 to 5. This is typically the most uncomfortable phase. Soreness, stiffness, and mild swelling are normal and expected. This is the acute inflammatory phase PRP intentionally triggers. Gentle range-of-motion movement is encouraged; avoid high-impact activity. Use acetaminophen (Tylenol) for pain — do not take NSAIDs (ibuprofen, naproxen, aspirin) as they blunt the healing response.
    Days 6 to 14. Soreness begins to fade for most patients. You may still feel some stiffness. Light walking and gentle stretching are appropriate. Continue to avoid NSAIDs and high-impact loading.
    Weeks 3 to 6. Most patients begin to notice meaningful improvement in this window. Pain decreases, range of motion improves, and functional capacity returns. Formal physical therapy or a rehabilitation program should begin around weeks 3 to 4 if your provider has prescribed one.
    Weeks 6 to 12. Full clinical benefit typically develops in this window. Most patients experience their best results at the 8 to 12-week mark. Athletes may return to sport-specific training around week 6 to 8 if cleared by their provider.

    What to Avoid After PRP

    Several common behaviors can undermine your PRP results. Here is what to avoid and why:
    NSAIDs for at least 4 to 6 weeks. This is the most critical aftercare instruction. Ibuprofen, naproxen, aspirin, and similar anti-inflammatories directly counteract the inflammatory healing response PRP relies on. A systematic review in the Journal of Orthopaedic Surgery and Research1 identified NSAID use as a key confounding variable in studies showing reduced PRP effectiveness. Use acetaminophen for pain management during recovery instead.
    High-impact activity in the first 2 to 4 weeks. Running, jumping, heavy lifting, and sport-specific loading should be avoided during the acute healing phase. Light walking is generally fine from day 2.
    Corticosteroid injections. Avoid steroid injections in or near the treated area for at least 3 months after PRP. Corticosteroids suppress the inflammatory response that PRP activates.
    Blood-thinning supplements. Fish oil, vitamin E, and herbal supplements with blood-thinning properties are often recommended to be paused 1 to 2 weeks before and after injection to support platelet function.

    What You Can Do to Support Recovery

    Optimizing your recovery actively improves outcomes:
    Stay hydrated. Platelet function and growth factor delivery depend on good blood volume and circulation. Adequate hydration supports the process.
    Follow your rehab program. Physical therapy or guided exercise — especially eccentric loading for tendinopathies — significantly enhances PRP outcomes. Don't skip it.
    Get adequate protein. Tissue repair requires protein. Ensure you are meeting daily protein needs (roughly 1.2 to 1.6 g per kg of body weight for active recovery) to support the healing process.
    Sleep. Growth hormone — released during deep sleep — amplifies the tissue repair response. Consistent, quality sleep during recovery is genuinely therapeutic.

    Frequently Asked Questions

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    Sources

    1. Shen L, Yuan T, Chen S, et al. The temporal effect of platelet-rich plasma on pain and physical function in the treatment of knee osteoarthritis: systematic review and meta-analysis. J Orthop Surg Res. 2017;12(1):16. PubMed

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