I think often when people talk about cartilage "healing" they are talking very specifically about re-growing lost joint cartilage. I don't think there is any ev

I think often when people talk about cartilage "healing" they are talking very specifically about re-growing lost joint cartilage. I don't think there is any evidence that adults can do that specific thing. I do think it is possible to "heal" cartilage in the sense of taking a tissue that is not functioning well and returning it to a more functional state. There's good evidence that exercise and losing excess weight can improve joint function, for example.