Thigh muscle ectropion is considered to be caused by the following reasons: First, during the usual physical exercise, no attention to thigh muscle distance exercise, resulting in overdeveloped local muscles, so that the thigh muscle ectropion, can be alleviated by strengthening other parts of the muscle exercise. Second, may be due to the thigh muscle muscle hernia caused by the muscle hernia is due to the patient after trauma, the muscle fascia is broken, due to muscle pressure leads to muscle protrusion from the part outward, thus causing muscle ectropion. The above is the main reason for the patient’s thigh muscle ectropion, it is recommended that patients with this symptom should go to a regular hospital to improve the relevant examination, clear diagnosis, confirm the specific cause of thigh muscle ectropion, under the guidance of the doctor according to the actual situation using the appropriate way to correct treatment.