Behind-the-knee pain could be due to muscle strain or arthritis—or something far more serious. Orthopedic experts say these are the most common causes.

It is a soft, fluid-filled lump in the popliteal fossa behind the knee. In the back of the knee, there is synovial tissue which can serve as an outlet for extra swelling within the knee and thus ...

This week we are going to discuss pain which occurs behind the knee in what is ... popping and buckling of the knee as well as swelling. Hamstring and calf strain: The hamstring musculature ...