Platelet-rich plasma, or PRP, is a substance that’s thought to promote healing when injected. Plasma is a component of your blood that contains special “factors,” or proteins, that help your blood to clot. It also contains proteins that support cell growth. Researchers have produced PRP by isolating plasma from blood and concentrating it.
The idea is that injecting PRP into damaged tissues will stimulate your body to grow new, healthy cells and promote healing. Because the tissue growth factors are more concentrated in the prepared growth injections, researchers think the body’s tissues may heal faster.
PRP injections has multiple applications. Examples of these include:
Hair loss: Doctors have injected PRP into the scalp to promote hair growth and prevent hair loss.
Tendon injuries: Tendons are tough, thick bands of tissue that connect muscle to bone. They are usually slow to heal after injury.
Acute injuries: Doctors have used PRP injections to treat acute sports injuries, such as pulled hamstring muscles or knee sprains.
Postsurgical repair: Sometimes doctors use PRP injections after surgery
Osteoarthritis: Doctors have injected PRP into the knees of people with osteoarthritis.
Generally speaking, there are few steps to preparing for PRP injections.
However, PRP can be injected in different ways. For example, sometimes a topical numbing lidocaine solution is applied to your scalp before injection. You may have to arrive early to a treatment session for this to be applied.
Other times, a local anesthetic is mixed with the PRP to reduce any discomfort. Sometimes, your doctor will inject or apply PRP during a surgery. In this instance, preparation for PRP injections would involve following your surgeon’s recommendations presurgery.