Meniscus displacement is often seen in knee osteoarthritis and knee trauma, etc. When meniscus displacement occurs, knee pain, swelling, interlocking joints and other symptoms can occur. 1. Pain: under normal circumstances, although the meniscus can have a certain degree of mobility, but more will not happen obvious displacement, meniscus obvious displacement is mostly seen in the knee joint trauma and other conditions, the knee joint more obvious pain. 2. Swelling: because of trauma to the knee joint and osteoarthritis, the local soft tissues will show obvious oozing and edema, so the knee joint can show swelling symptoms. 3. Knee interlocking: after the meniscus is displaced, the meniscus will be stuck in the gap of the knee joint, which will lead to the knee joint not being able to move normally, and the symptoms of interlocking will appear. When the above symptoms occur or when meniscus displacement is suspected, it is recommended to consult a doctor in time for examination to clarify the condition, and to treat under the guidance of a professional physician to avoid delaying the condition.