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A 42-year-old male asked:

no knee pain ever. recently i have been doing a project that requires me to squat down to do some things. when i get up i can't straighten my leg, pain behind knee cap. this will last for 24 hrs and then be fine. will happen the following weekend when i s

1 doctor answer1 doctor weighed in
Dr. John Goldman
Rheumatology 55 years experience
Chondromalacia patel: This is probably chondromalacia patella this is softening of the Cartlidge underneath the kneecap. The best therapy is to strengthen and the quadriceps muscle. These are the thigh muscles.

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Last updated Nov 18, 2019

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