Question: I have trouble straightening my left knee without pain, and it's starting to affect my mobility. What could be causing this and what should I do?
Dr. Hibberd's answer:
Knee pain is most often caused by stretching tissues too far or injury. Sometimes osteoarthritis or other arthritic conditions will affect the joint and can cause the kind of pain you describe.
Often a ligament strain will feel the same as a bursitis, but can be differentiated by your doctor easily. Difficulty straightening your knee may occur when fluid fills the joint space, or when internal injury has occurred.
See your doctor for an evaluation. Perhaps it is not an internal joint issue, and just an external muscular strain. If in doubt, an MRI may be advised.
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