The pyriformis muscle is located at the back of the hip, and pain and pressure in the hip and weakness in hip abduction can occur after a pyriformis injury. Treatment includes rest, medication, and surgery. Repeated injuries to the pyriformis muscle will lead to hypertrophy and contracture of the pyriformis muscle, which will compress the sciatic nerve located under the pyriformis muscle, causing symptoms of sciatic nerve entrapment, which will lead to pain and numbness of the lower limbs and limitation of activities. Treatment after a pyriformis injury includes rest and braking and medication. After pyriformis muscle injury, patients are required to rest in bed, do not walk on the ground for the time being, do not do hip abduction movements, oral non-steroidal anti-inflammatory drugs and Chinese medicines that improve local blood circulation by relaxing the tendons and improving the blood circulation. If conservative treatment is ineffective and the injury is severe enough to cause local muscle necrosis, then timely debridement is needed, and important nerves should be explored and repaired. Repeated injury of the pyriformis muscle should be avoided in daily life. It is recommended to consult a doctor in time when symptoms appear.