A member asked:

If i stand up for maybe 20-30 minutes my right knee starts to hurt and the pain might stay for a day or two. why is that?

A doctor has provided 1 answer
Dr. John Chiu answered

Joint problem: At your age, you might have injured it some time ago and now the injured part of the knee has become more severe to become noticeable. See an orthopedic doctor.

Answered 3/11/2014

4.4k views

Thank

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