Runner’s knee is the common term used to describe any one of several conditions that cause pain around the kneecap or patella. These conditions include: anterior knee pain syndrome, patellofemoral malalignment, chondromalacia patella, and iliotibial band syndrome.
As the name suggests, running is a common cause of runner’s knee, but any activity that repeatedly stresses the knee joint can cause the disorder, including walking, skiing, biking, jumping, cycling, and playing soccer.
To learn more you should go to a medical professional.
Keyword: runner knee