Sensory ataxic gait, this refers to deep sensory impairment caused by walking is characterized by a larger stride with wide leg spacing, lifting the foot higher, the footpath is strong to hit the ground with both eyes looking at both feet when the eyes are open can be partially relieved, unstable or even unable to walk when the eyes are closed, often accompanied by sensory impairment Romberg sign positive is seen in subacute joint degenerative spinal consumption and so on. Causes of sensory ataxic gait Sensory ataxic gait is seen in subacute combined degenerative spinal cord pneumonia hereditary ataxia posterior cord lesion diabetes mellitus and cancerous neuropathy. Examination of sensory ataxic gait Sensory ataxic gait is more likely to be caused by spinal cord lesions, so spinal MRI cerebrospinal fluid examination, electromyography and somatosensory evoked potentials should be chosen. Differential diagnosis of sensory ataxia gait: 1. Drunkard’s gait: because the center of gravity is not easy to control, the body sways unsteadily to both sides after raising the legs with wider spacing between the legs when walking, the upper limbs often sway horizontally or in front or behind, and sometimes cannot stand steadily, and the instability is more obvious when changing the position and cannot walk in a straight line This gait is also called “waddling gait”. 2, sensory ataxia gait: this refers to deep sensory impairment caused by walking is characterized by a large stride width of the legs are widely spaced, lifting the foot higher, the footpath strong hit the ground eyes looking at both feet can be partially relieved when the eyes are open, unstable or even can not walk when the eyes are closed, often accompanied by sensory impairment Romberg sign positive seen in subacute joint degenerative spinal consumption, etc. 3, spastic hemiplegic gait: hemiplegic lower limbs appear longer due to high muscle tone of the extensor muscles, and flexion difficulties when walking patients on the hemiplegic side of the upper limb of the coordinated swinging action disappeared, was inward rotation before flexion posture, lower limbs straight and external rotation when lifting the pelvis, to avoid dragging the toe and outward rotation after moving to the front, so also known as circle-like gait, is caused by damage to one side of the cone bundle is mostly seen in cerebrovascular disease. 4, spastic paraplegic gait: due to the increased tension of the lower limb adductor muscle group resulting in walking with the legs crossed medially, such as scissors, so also known as scissor gait, seen in transverse spinal cord damage cerebral palsy, etc.