Lateral thigh muscles without feeling consider lateral femoral cutaneous neuritis, local nerve injury, lumbar intervertebral disc herniation and so on. 1. Lateral femoral cutaneous neuritis: also known as lateral femoral cutaneous nerve entrapment syndrome, due to the lateral femoral cutaneous nerve belongs to the sensory nerve, once there is inflammation or compression, it may lead to the loss of local muscle sensation. 2. Localized nerve injury: trauma such as knife injury can cause nerve fracture, after the fracture of the nerve innervated muscle sensation loss. 3. Lumbar intervertebral disc herniation: Especially when the lumbar 2/3 intervertebral disc herniation compresses the posterior horn of the nerve root, because it is the sensory nerve that innervates the lateral thigh muscles, there may be no sensation in the lateral thigh muscles after the compression. It is recommended to consult a physician for treatment under the guidance of a physician if there is no sensation in the lateral thigh muscles.