Meniscal tears are described in a great variety of knee accidents. According to the affected region, the healing prognosis will be different: a tear in the peripheral vascularized red zone has an important healing capacity and must be repaired as far as possible. In the intermediate zone, a suture may still heal when inner tears, in the white zone, must be resected. After 65 years of age, 2/3 of knees demonstrate meniscal lesions. Surgical indications must be careful discussed in these non-traumatic lesions. Enthusiastic surgery, guided by imaging, is often deleterious.