Thumb, index finger, middle finger will be numb, mainly seen in the following aspects of the cause: first, carpal tunnel syndrome, most often seen in the long-term use of the hand repeatedly rubbing clothes, or use the mouse too long or too long hand, wrist activities, wrist fracture, damage to the median nerve, there will be numbness of the thumb, forefinger, middle finger dorsal side of the skin, at this time you can carry wrist gloves to support the wrist. Secondly, if the fracture is caused by the wrist, the fracture should be repositioned, symptomatic treatment should be given, and the symptoms may be relieved after reducing the activities of the wrist. Third, if the numbness of the thumb, index finger and middle finger is accompanied by the numbness of the forearm or loss of strength, it is considered that there may be brachial plexus nerve injury, and it is necessary to do cervical magnetic resonance examination at this time to find out whether there is any cervical disc herniation, especially in the 5-7 cervical spine.