What causes patellofemoral pain syndrome?
The exact cause of patellofemoral pain isn't known. It probably has to do with the way your kneecap (patella) moves on the groove of your thigh bone (femur).
Bibliography
See a list of resources used in the development of this information.
Written by familydoctor.org editorial staff
Reviewed/Updated: 12/10
Created: 12/00