Meniscus is not able to grow again, meniscus belongs to the fibrous cartilage, can not be regenerated after injury. Meniscus is a pair of elastic fiber cartilage pads in the knee joint, divided into the medial meniscus and lateral meniscus, mainly play the role of conduction, cushioning force, to maintain the stability of the knee joint and the role of balance, due to the meniscus of the blood circulation is relatively poor, the more serious meniscus injury is difficult to repair, will appear in the joints of the swelling, pain, limited mobility, and interlocking joints and other symptoms. At present, the clinical treatment of meniscus injury, mainly according to the severity of the disease to choose different means of treatment, mild meniscus injury can be treated conservatively, severe meniscus injury should be timely arthroscopic surgical treatment, feasible meniscoplasty or suture surgery. The meniscus cannot be regenerated. If the patient has a meniscus injury, should promptly go to the hospital orthopedic department for magnetic resonance examination, to clarify the degree of meniscus injury, targeted treatment or treatment.