Thigh root pain a moment to the calf a moment to the thigh, common original pear-shaped muscle syndrome, lumbar disc herniation, nerve sheath tumor. 1. Pearly muscle syndrome. When the pyriform muscle and chronic injury or, resulting in the pyriform muscle edema, adhesion, spasm and other pathological conditions, the gap around the pyriform muscle becomes narrow. The sciatic nerve that passes through the interstice of the pyriform muscle is compressed, that is, the pyriform muscle syndrome occurs, and the symptoms mentioned above appear, that is, abnormal sensation of the thigh root and calf, and fatigue and other symptoms. Clinical symptoms of thigh and calf pain occur. 2 Lumbar disc herniation. Lumbar disc herniation is mainly due to the fact that the intervertebral disc breaks down and the nucleus pulposus protrudes into the spinal canal, compressing the nerve root. Lumbar pain, leg pain, fatigue, lower limb sensory impairment and other symptoms. It can cause thigh root pain and thigh and calf pain. 3. Nerve sheath meningioma. Nerve sheath meningioma compresses the sciatic nerve, which can also cause the above symptoms. If thigh root pain goes to the calf and then to the thigh, it is recommended to consult a doctor for timely diagnosis and active treatment.