Walking on a torn meniscus is generally safe, but it's vital to pay attention to your body and stay away from activities that make the pain worse. As long as it is done moderately and carefully, walking can actually assist enhance blood flow to the knee joint and facilitate healing. Running and jumping should be avoided, though, as these actions can exacerbate the rupture and cause more harm to the knee joint. The appropriate course of treatment for a torn meniscus should be followed, which may include rest, physical therapy, or surgery.