Meniscal degeneration is more serious than meniscal injury. In a strict sense, meniscal degeneration is not a manifestation of disease. Meniscal degeneration is a natural, normal physiological phenomenon that occurs as a result of age-related degenerative changes in the meniscus. Meniscal injury is a natural, normal physiological phenomenon that occurs as a result of age-related changes. Meniscal injury, on the other hand, is a disruption of the continuity and integrity of the meniscus due to external forces. Meniscal degeneration has no clinical symptoms, whereas meniscal injury has obvious symptoms of injury such as knee pain and limited joint function. The more severe the meniscal injury, the more significant the functional limitation and pain.