Sprains and small knee articular cartilage destruction may well recover by themselves inside of a handful of days or even weeks. On the other hand additional severe cartilage damage more than likely received’t strengthen on its own and if left untreated, can at some point use down the knee joint. https://www.theorthopaedicandpainpractice.com/understanding-knee-pain-and-how-to-manage-it-in-singapore/