A single test is not comprehensive in diagnosing knee pain. A complete medical history combined with physical test can accurately diagnose the cause for the knee pain.

The following factors may help in assessing the nature of knee pain:

After these are thoroughly assessed the doctor might examine the tenderness of the knee and the response to various movements.  There are a few maneuvers conducted to assess the ACL and PCL in various parts of the knee. If the results of these tests aren’t satisfying then the doctor might suggest a Magnetic Resonance Imaging (MRI). An MRI helps in examining the condition of ligaments and tendons in the knee and assesses the damage.

Depending on the nature of the injury further imaging scans like an X-ray or a CT scan may be suggested. If an infection is suspected then there might arise a need for blood test or arthrocentesis- a procedure in which the fluid from the injured joint is removed with a needle and sent for analysis.