Small gait is walking slowly, with both feet rubbing the ground. It shows small steps, dragging, slow starting or turning, and unsteady gait. Gait refers to the posture of walking. When walking, the affected foot just clicked the ground, the healthy foot quickly started to move forward; the healthy foot touched the ground for a long time, the affected foot clicked the ground for a short time. In clinical examination of patients with small gait, patients should be asked to walk back and forth several times with their accustomed posture and speed to observe whether their whole body posture is coordinated when walking, whether the posture and dynamic amplitude of the joints of the lower limbs are normal in each period, whether the speed and stride are proportional, and whether the upper limbs swing naturally. Next, the patient was asked to do fast and slow walking, and if necessary, to do casual and relaxed walking and focused walking, respectively, for observation. And try to perform such actions as standing and stopping, turning, turning, going up and down stairs or ramps, going around obstacles, going through doorways, sitting down and standing up, stepping slowly or standing on one foot, and standing with eyes closed. Sometimes walking with the patient’s eyes closed can also make mild gait abnormalities more apparent. Walking with a cane or crutches can conceal many small gait patterns, so gait examinations with and without crutches should be performed separately for those walking with crutches or canes. The small gait examination is often combined with a series of basic tests, such as physical examination of the neurological system, muscle strength and tone examination of various muscle groups, joint mobility examination, lower limb length measurement, and morphological examination of the spine and pelvis. These tests are of great importance in determining the nature, cause and treatment of abnormal gait. Common causes of small gait found by gait analyzers: 1. Weight bearing or sports injuries. 2. Low muscle strength. 3. A pathological state, such as arthritis or local disuse due to surgical metal implants. 4, neuropathic state of ataxia, movement disorders, such as spastic cerebral palsy, hemiplegia secondary to cerebrovascular accident, Parkinson’s syndrome, etc. 5.Bone or soft tissue lesions, such as deep scar tissue secondary to fracture, congenital malformation or severe burns.