What does it mean when I put my leg in a 90 degree angle and it hurts My knee?

or:What does it mean when I put my leg in a 90 degree angle and it hurts My knee?or:It could mean that you're not stretching properly or stretching e

or:What does it mean when I put my leg in a 90 degree angle and it hurts My knee?

or:It could mean that you're not stretching properly or stretching enough. The muscles in your thighs and legs are attached to your knee. If you continue to have problems you may want to contact your physician.

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