Platelet-rich plasma (PRP) therapy employs injections of a concentration of a patient’s own platelets to optimize the healing of injured tendons, ligaments, muscles, and joints. Through this manner, PRP injections utilize each individual patient's own healing system to relieve musculoskeletal problems.PRP injections are produced by taking anywhere from one to a few tubes of your own blood and running it through a centrifuge to concentrate the platelets. These activated platelets are then injected directly into your injured or diseased body tissue. This generates growth factors that induce and strengthen the number of reparative cells the body produces.