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

If you have a weakness in one of these categories, here's what could be causing your inside knee pain. "Arthritis is a ...

Inner knee pain, also referred to as medial knee ... A tear to this ligament can cause both pain and a sensation that the knee is ‘giving way’. Pes anserinus syndrome – commonly caused ...

See what happens inside your knee when this ligament overstretches ... WebMD explains common things that can cause knee pain.