Thigh pain when lifting the leg may be caused by anterior thigh muscle injury, lumbar disc herniation and other diseases. 1. Anterior thigh muscle injury: the anterior thigh muscles such as quadriceps and iliopsoas are important muscles to ensure hip flexion, when these muscles are injured, it will lead to pain when lifting the thigh. 2. Lumbar disc herniation: Lumbar disc herniation will make the nerves innervating the leg be compressed, and lifting the leg will make the compression further aggravate, and the symptom of thigh pain when lifting the leg appears. Thigh pain when lifting the leg may also be seen in the pyriform muscle syndrome, femoral head necrosis, hip synovitis and other diseases, it is recommended that patients with thigh pain when lifting the leg should consult a doctor in a timely manner, under the guidance of the doctor for treatment.