It is very difficult to identify a single cause of arthritis.  The reason for this is that there are so many things which can impact the human body including joints and knees.  Most people would say that Causes Of Arthritis are generally unavoidable. This is not really true.  For example, my great uncle managed to control his arthritis through a program of gentle exercise.  This exercise programme was developed by a physical trainer for the specific purpose of controlling arthritis. So, there is no reason why you should suffer from arthritis.  Visit your local gym today, and get a exercise programme which is designed to control of arthritis.