How long does PRP injection take to work for tendinopathy?

Tendinopathy is a change in a tendon’s ability to tolerate load, not simply a short-lived pain signal. PRP may make the area more uncomfortable at first because the injection and local healing response can irritate tissue. Improvement is better judged over a pattern of days and activities than by one good or bad morning.

The affected tendon, how long symptoms have been present, general health, and daily demands all influence the course. A person may notice easier movement before they can safely return to heavy lifting, repeated jumping, or fast running.

Keep the agreed activity limits after treatment and do not add demanding exercise simply because pain briefly settles. Your physiotherapist can progress loading from controlled movements to stronger, faster, or work-specific tasks. The right level should challenge the tendon without causing a lasting flare.

Record the activity, symptoms during it, and how the tendon feels later that day and the next morning. Share this information at review. For treatment context, see [PRP Injection](/treatments/non-surgical-orthopedics/prp-injection/).

Contact your clinician about increasing warmth, redness, drainage, fever, or pain that does not begin to settle after the expected post-injection period. Seek urgent assessment after a sudden snap, new weakness, inability to use the limb, severe swelling, or symptoms suggesting a clot or breathing problem.

Ask how your tendon will be tested, which exercises are suitable at each stage, when work or sport can be modified, and what finding would prompt another diagnosis or treatment. Clarify which medicines and activities should be avoided around the injection.