A tendon avulsion is the likely cause of your hamstring pain if the pain is close to your buttocks or knee, which are the places where your hamstring muscles connect to bone. Sitting is painful if ...

A person may experience pain in their buttocks ... is a pear-shaped muscle in the buttocks that extends from the base of the spine to the top of the thigh. Piriformis syndrome develops when ...

If it slides forward it can pinch against soft tissue structures (like the labrum) and cause pain ... hand partially on your ...