https://www.healthcentral.com/article/bad-pain-upper-left-thigh-only-ok-when-sitting-lying-down
Pain Management

I Have A Bad Pain In Upper Left Thigh Only. I'm Ok When Sitting Or Lying Down.

    Answered by Christina Lasich, MD
    You should know: The answer above provides general health information that is not intended to replace medical advice or treatment recommendations from a qualified healthcare professional.