Clot or muscle: Either a venous clot, or muscle spasm from strain or cramp. Could be a pulled medial hamstring, vastus medialis, adductor longus, adductor magnus, gracilis, and/or sartorius. See what motion of left hip or knee triggers it. See sports medicine specialist or physiatrist.
Answered 1/15/2016
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4 doctors weighed in across 2 answers
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3 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
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