Meniscal degeneration is not self-healing, and even meniscal degeneration cannot be cured. The reason why meniscus degeneration occurs is due to the degenerative changes formed gradually by repeated friction, squeezing and stimulation for a long time. Once the degenerative changes are formed, the degeneration will become irreversible, that is, once the meniscus degenerates, the quality decreases, the water content and protein content gradually decreases, and the resistance to squeezing decreases, it is impossible to change into the original better quality and shape. Therefore, the meniscus cannot heal itself after degeneration, and there is no way to change or improve it into the original quality and shape even with medication.