The meniscus is located between the femoral condyle and the tibial plateau, one on the medial and one on the lateral side, and plays an important role in conducting load, maintaining stability, and distributing synovial fluid. When the meniscus ruptures due to long-term wear and tear or acute injury, it partially or completely loses its original function and even creates interference within the joint, affecting the normal movement of the knee. The meniscus is extremely difficult to heal after an injury because the blood supply is extremely poor, with most of it being a bloodless area and only 25%-30% of the near capsule side having blood supply, making it very difficult to repair. Medication, injections, plasters or physical therapy can only temporarily relieve the symptoms and may lead to knee osteoarthritis over time. Meniscal injury should be taken seriously and surgery should be considered. However, meniscus removal changes the normal load conduction to a certain extent, so there is a trend towards meniscal suture repair; when partial removal is performed, as much of the meniscus as possible is preserved. Early diagnosis and early treatment, without allowing the meniscus injury to develop to the extent of complete loss of function, can provide more opportunities for suture repair of the meniscus.