Multiple reasons: Many pathologies can cause knee pain with knee flexion. Without more info and an exam, it is difficult to give a firm diagnosis. If pain is severe, you should be evaluated by your primary care physician or orthopaedic surgeon.
Answered 9/23/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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