At a time when medical technology is developing rapidly， the combined application of two cutting-edge technologies， stem cells and PRP (platelet-rich plasma)， is bringing new hope to many patients and becoming the focus of regenerative medicine.

　　Stem cells, which can be called the "universal cells" of the human body, have the potential to self-renew and differentiate into multiple cell types. It is like a "repair master" of life, which can home to the damaged tissue, secrete growth factors to start the self-repair mechanism, and promote tissue regeneration. For example, in the treatment of osteoarthritis, after mesenchymal stem cells are injected into the knee joint, they actively migrate and adhere to the surface of the damaged cartilage, provide nutrition for the cartilage, help the proliferation and differentiation of chondrocytes, and improve the problem of cartilage wear and loss from the root.

　　PRP is platelet-rich plasma extracted from one's own blood， which can be called the "regenerative medicine" of the human body. After platelets are activated， they release a variety of growth factors， such as platelet-derived growth factor (PDGF)， transforming growth factor-β (TGF-β)， etc.， which can stimulate cell proliferation and differentiation， promote tissue repair and regeneration. Build a good microenvironment for tissue repair.

　　When stem cells and PRP join forces， the effect is 1+1>2. PRP can create and improve the microenvironment for stem cell growth， increase the survival rate of stem cells， and further enhance the therapeutic effect. In the treatment of knee osteoarthritis， the combination of the two can promote blood supply， reduce local inflammatory response， promote the synthesis of cartilage matrix， and better repair cartilage defects. At the same time， the anti-inflammatory effect of PRP can also reduce pain and swelling after treatment， and reduce the incidence of complications such as infection. Moreover， PRP is derived from autologous blood， which is easy to make and avoids the risk of immune rejection and disease transmission that may be caused by allogeneic transplantation.

　　Currently， stem cells combined with PRP have been widely used in orthopedics， plastic surgery， and men's medicine. In orthopedics， it is used to treat knee arthritis， meniscus injury， delayed fracture healing， etc.; in plastic surgery， it helps facial filling， breast filling and facial rejuvenation; in men's medicine， it brings new directions for the treatment of diseases such as impotence.

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