The effect of platelet‐rich plasma injection in the treatment of androgenetic alopecia

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BACKGROUND: Androgenetic alopecia is the most common type of hair loss in men, which is manifested by a progressive terminal hair loss in specific areas of scalp. Platelet-rich plasma (PRP) is among treatment options for androgenetic alopecia. PRP is a human platelet concentrate in a small volume of plasma containing certain cytokines. AIM: The aim of this study was to evaluate the efficacy and safety of autologous PRP in treatment of male androgenetic alopecia. METHODS: ) into the scalp, and operation was repeated in three sessions at 0, 4, and 8 weeks. We took macroscopic and dermoscopic pictures of each patient in 0, 4, and 8 weeks and 3 months after the last injection session. A dermatologist evaluated the treatment response using dermoscopy photos. RESULT: Our results showed that the trend of hair thickness and number variations during study period was significant (P < 0.001). However, there was no significant change in the hair thickness from the second injection forward. Our findings indicate the number of hair follicles during follow-up in pairwise comparison was significantly more than baseline. CONCLUSION: Findings of our study were in line with other studies in this field and showed that the use of PRP as a new and safe treatment can be effective in androgenetic alopecia.