See a doctor!: There are many possible causes why your legs do not straighten out. Have you had any injury or surgery to your knees? Are you a runner, an athlete, a gymnast or a dancer? It could be due to severe osteoarthritis, ligament tears, problems with muscles or tendons of your thighs or calves. In any case, it's not normal. You should be seen by a doctor for evaluation.
Answered 9/28/2016
6.1k views
Not sure: There could be many causes. Sounds like you should visit your doctor.
Answered 9/28/2016
6k views
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