Platelet-rich plasma (PRP), which is rich in various types of growth factors found in blood, is injected into the areas we need to stimulate the autologous repair and regeneration function of the injected areas, thus providing a regenerative and restorative effect. PRP can be combined with hyaluronic acid for facial injections to increase the efficacy of hyaluronic acid and increase the maintenance time of hyaluronic acid treatment. PRP can be combined with hydration injections to improve skin quality and inhibit skin problems such as oily skin, rough skin, pigmentation, dull skin, fine lines, etc. Because PRP has a strong ability to promote tissue regeneration, PRP combined with fat injections can improve the survival rate of fat and reduce the trouble and cost of multiple surgeries. Recently, two studies published abroad have shown that PRP can help in the treatment of male erectile dysfunction, and its long-term efficacy remains to be further observed. In terms of injectable enlargement, the role of PRP is still supplementary, mainly to increase the survival rate after fat filling, and its exact efficacy still needs to be further explored and studied.