Platelet-Rich Plasma in Dermatology

Overview / Definition Platelet-Rich Plasma (PRP) therapy involves the extraction of a concentration of platelets from the patient's own blood, which is then injected into targeted areas of the skin. PRP is rich in growth factors that play a crucial role in tissue regeneration and healing processes. Epidemiology PRP therapy has gained popularity over the past two decades, especially in aesthetic dermatology. It is widely used across various populations, with indications ranging from hair restoration in androgenetic alopecia to skin rejuvenation in aging skin. The increasing demand for minimally invasive procedures contributes to its growing use. Pathophysiology / Mechanism The therapeutic effects of PRP are primarily attributed to the high concentration of growth factors and cytokines found in platelets. Upon activation, platelets release these substances, which promote: Cell proliferation Angiogenesis (formation of new blood vessels) Collagen synthesis Wound healing This cascade of biological responses enhances tissue repair and rejuvenation, making PRP useful in treating various dermatological conditions. Clinical Presentation Patients seeking PRP therapy may present with: Hair thinning or loss (androgenetic alopecia) Acne scars and other types of scarring Skin laxity and wrinkles Overall skin texture and tone irregularities Clinical assessment should include a thorough history and physical examination, focusing on the specific dermatological condition being treated. Diagnosis / Workup Diagnosis of conditions treated with PRP is primarily clinical, but certain investigations may be warranted based on the presentation: Trichoscopy for hair loss assessment Scarring evaluation using photography Skin type assessment (Fitzpatrick scale) Routine blood tests are not typically necessary unless contraindications for the procedure exist (e.g., coagulopathy, platelet disorders). Treatment / Management The PRP procedure generally involves the following steps: Blood Collection: