Platelet-rich plasma (PRP) therapy is a new treatment that is being used to help heal injuries. PRP is a concentration of platelets and growth factors that are derived from your own blood. These growth factors have the ability to stimulate healing of injured tissues. Joint and wound recovery following trauma can both be improved by PRP therapy. PRP therapy is becoming increasingly popular as a treatment for a variety of injuries, including tendon and ligament injuries, joint pain, and muscle injuries.