What is the meniscus? The meniscus of the knee is a fibrocartilaginous tissue that fills the area between the femur and tibia, and is called a meniscus when viewed in plan. If you compare the knee joint to a bearing, the meniscus is like a rubber cushion in the bearing, cushioning the shock, lubricating the joint, stabilizing the joint, and assisting in movement, says Donghaichao. Why is the meniscus easily damaged? The structure and function of the meniscus makes it one of the most vulnerable tissues in the knee joint. A torn meniscus is like sand in a bearing, making it difficult for it to slide smoothly and causing secondary damage to the articular cartilage. This wear and tear is an early sign of joint degeneration, which we call “senile leg”. How to prevent meniscus injury? 1, before exercise should do a good warm-up, so that all the joints of the body activities open. Young people should avoid weight-lifting squats, middle-aged people should avoid climbing hills that are too steep, and older people should try not to climb hills. 2, daily life, you can strengthen the muscle exercise. Strong muscle strength can offset part of the impact of the movement, to ensure the stability and flexibility of the joints to avoid sprains. 3, up and down the stairs or up and down the bus to pay extra attention, you can use the handrail to ensure the stability of each step.