When Is PRP Injection Recommended for Patellar Tendinitis?

Patellar tendinitis, also called patellar tendinopathy, affects the tendon connecting the kneecap to the shin. Pain often appears below the kneecap during jumping, running, squatting or stairs. Examination helps distinguish tendon pain from a kneecap problem, meniscus issue or injury to another structure. PRP is made from your blood and placed near the affected tendon. It may be considered to support a healing response, but it does not remove the need for load management and progressive strengthening.

Have the diagnosis checked and describe which movements provoke pain, how long symptoms have lasted and what training changes you have tried. Early care commonly focuses on reducing aggravating loads without complete inactivity, then building quadriceps and hip strength through a graded programme. If PRP is proposed, ask about imaging, injection placement, the temporary activity plan and when tendon loading can progress. Learn more in [Patellar Tendinitis](/conditions/patellar-tendinitis/) and [PRP Injection](/treatments/non-surgical-orthopedics/prp-injection/).

Arrange prompt assessment after a sudden force if you felt a pop, cannot actively straighten the knee, or have marked swelling or difficulty walking. A hot, red knee with fever also needs urgent medical review. These symptoms can signal a significant tear, fracture or joint problem and should be assessed before an injection is considered.

Is the pain definitely coming from the patellar tendon? What level of tendon loading is safe now? How long should rehabilitation be tried before we review the plan? What would PRP add to my current programme? How will we measure progress without returning to sport too quickly?