Injury to the median nerve is manifested as: thumb abduction dysfunction and thumb and index finger pinching dysfunction due to thumb short abductor muscle paralysis, palmar radial half, thumb, index, middle and ring finger radial half palmar surface, thumb interphalangeal joint and index, middle and ring finger radial half proximal interphalangeal joint to distal sensory impairment, mainly manifested as loss of sensation in the index finger. So what are the preventive measures for loss of sensation in the index finger? The following is a brief introduction for you. Patients with loss of sensation in the index finger should pay attention to the application of support to make the affected joint in a functional position, because the median nerve injury not only affects the flexion and flexion of the thumb and the function of the palm, and the loss of solid sense has a great impact on the function of the hand, so the restoration of sensory function is an important task, for sensory loss can let the patient touch a variety of objects of different shapes, sizes, textures, such as flannel, coins, keys and other everyday objects, first in For sensory hypersensitivity, desensitization therapy is needed, i.e., patients should be educated to use more sensitive areas, self-massage on sensitive areas, stimulate sensitive areas with objects of different materials, etc. Patients should be educated to protect the sensory impaired areas and not to touch dangerous objects with the affected hand to prevent burns, puncture wounds, pressure ulcers, and when finger muscle strength is restored to level 3 The patient should be instructed to do more hand fine motor exercises and ADL exercises.