Pyriformis syndrome can occur in both legs. Piriformis syndrome is caused by a compression of the sciatic nerve in the buttocks. Most cases of piriformis syndrome are related to trauma, and if the sciatic nerve is only compressed on one side, there will be symptoms of pain in one leg, but if the sciatic nerve is compressed on both sides, the symptoms of pain in both legs will occur. The most important manifestation of pyriformis syndrome is sciatica, there will be pain in the buttocks and radiating pain in the lower limbs, and when the pain is severe, it will affect normal walking. It is recommended to actively treat it, and most of the patients can get relief from the symptoms through conservative treatments, and surgery can be carried out if necessary. Piriformis syndrome patients, it is recommended to pay attention to local warmth, usually to correct poor posture, avoid aggravating the burden on the hip muscles, avoid doing high-intensity exercise.