### Instruction: What is the medical procedure PRP?
### Response: PRP stands for platelet enriched plasma. the patient's own blood is extracted, centrifuged, and the extracted plasma is reinjected at the target site. It is used to treat a variety of inflammation disorders and to encourage growth. It is not yet FDA approved, but has been shown to lead to statistically significant improvements in mobility and comfort. The mechanism of improvement is not understood, but it is hypothesized that growth factors from platelets are involved. PRP is used to treat joint inflammation, skin conditions, and hair loss.