Lumbar disc herniation is a more common type of spinal neurological disorder in clinical practice. Patients with lumbar disc herniation mostly show lumbago in the early stage, i.e. lumbago is aggravated when sitting, bending, coughing and sneezing, but lumbago is alleviated after lying down, or discogenic lumbago appears, in addition to lower limb symptoms, such as numbness, pain, soreness and coldness in the lower limbs, and in severe cases, not only the nerve roots are compressed, but also the cauda equina nerve is compressed. Symptoms such as urinary and fecal dysfunction and even incontinence may occur.
The abnormal sensation in the lower limbs of patients with lumbar disc herniation is caused by nerve root compression and irritation, which is mainly manifested in the numbness, coldness and chilliness of the affected lateral lower limbs, and sometimes an ankle sensation, burning sensation, etc.