Numbness in the two fingers of the left hand is mainly seen in the following cases: 1. If the left hand is numbness of the palmar side of the thumb index finger middle finger hand and the dorsal skin of its middle and distal joints, accompanied by hypesthesia and restricted movement, consider having damage to the median nerve, such as carpal tunnel syndrome. 2. If it is numbness of the little finger and the index finger, consider having damage to the ulnar nerve, such as hyperflexion of the elbow to support the table, or having a fracture of the elbow compressing the After the ulnar nerve, there will be numbness in the index finger and the little finger of the left hand. 3, if the numbness is in the skin of the thumb, middle finger and the back of the index finger, consider that there may be a radial nerve pressure injury; according to which two fingers of numbness specific analysis.