The Piriformis muscle is a small muscle (3-5cm) located in your buttock. It runs from the bottom of the spine to the top of the hip. Its function is to help the leg rotate outwards. Piriformis syndrome occurs when the piriformis muscle becomes tight, usually from overuse. Other problems, such as a burning sensation down the back of the leg, may occur when this tight muscle compresses the sciatic nerve which may run above, below or right through the piriformis muscle.
Signs and Symptoms
Sitting tolerance is limited to 15-20 mins before onset of pain
Pain, numbness or tingling down the back of the leg
Tender area in the buttock region
Difficulty walking due to pain
Trauma, Muscle spasm or muscle imbalance
Improper sitting posture or abnormal walking patter