You may rarely hear Piriformis syndrome because this disease is classified as lower back pain which is rare, so not many people are familiar with its name. Lower back pain itself is a common condition experienced by people with an age range between 18 to 55 years. Piriformis syndrome occurs when the Piriformis muscle compresses the sciatic nerve, which is a large nerve that runs from the lower back to each of your legs. Piriformis muscle itself is a muscle located in the buttocks, extending to the top of the femur. Piriformis muscles help balance the lower body when you do activities that involve parts of the body in this area, such as walking or while lifting weights. Piriformis Syndrome and its effects on the body Someone who has Piriformis syndrome may feel pain in the hip, buttocks, or groin area, and also feel the body out of balance. Symptoms that are felt in Piriformis syndrome are generally similar to sciatica. Piriformis syndrome is susceptible to truck drivers, tennis ...