The platelet rich plasma treatment technique is mainly used for the repair of various wounds. A course of treatment requires about 3-4 injections, one injection is about 5,000 RMB, and the overall cost is about 15,000 – 20,000 RMB. Platelet rich technology is mainly rooted in the extraction of blood from the human body to separate and activate the platelets in the blood, and the activated platelets then contribute to the repair of blood vessels and wounds. The activated platelets are then used to repair the cartilage surfaces, meniscus and ACL damage. In cases where the damage to the ACL and meniscus is not very severe, it is possible to recover from this treatment. In addition, this technique can also be applied to cartilage repair, such as after cartilage debridement, activated platelets can be injected to promote cartilage surface recovery.