There are two factors that contribute to meniscus injuries, compression and rotation. A fall may not generally cause meniscus injuries because the incidence of falls causing meniscus injuries is not high, suggesting that most people do not injure the meniscus by falling. However, there are certain situations where a fall can cause a meniscus injury, such as a fall where the knee twists or knocks against a restricting obstacle, which causes the stress of the knee to turn outward or inward can damage the meniscus, which is generally uncommon, and is mostly accompanied by one other condition. If the patient is discoid meniscus, discoid meniscus mobility is insufficient, in the process of falling, it is easy to squeeze to the middle of the bone to cause damage, so most of the fall damage meniscus is discoid meniscus injury.