of the sacrum, passes through the greater sciatic foramen, and attaches to the greater trochanter of the femur. This muscle plays key roles in externally rotating the hip, abducting the thigh, and extending the hip joint. Despite its size, the piriformis is vital for hip stability during movement.
How Piriformis Syndrome Develops
Piriformis syndrome arises when the piriformis muscle becomes tight, inflamed, or spasms, pressing on the nearby sciatic nerve. This nerve runs either underneath or through the piriformis muscle, making it susceptible to compression. Several factors contribute to this