Numbness of ring finger and little finger is alert to nerve root cervical spondylosis, elbow tube syndrome, ulnar nerve injury and other diseases. 1. Nerve root type cervical spondylosis: cervical intervertebral disc herniation can cause nerve root to be compressed, resulting in numbness of the little finger and ring finger, neck pain, and radiating pain in the upper limbs. 2. Elbow canal syndrome: when the ulnar nerve travels through the elbow canal and becomes narrow or when the ulnar nerve is injured, the ulnar nerve will be compressed. Numbness of the little finger and ring finger dares to appear. In serious cases, it may even cause muscle atrophy of the little finger and part of the palm of the hand. 3. ulnar nerve injury: due to the shallow location of the ulnar nerve groove of the elbow joint humeral epicondyle, when the elbow collision or trauma, hand joints are too heavy, it is easy to make the ulnar nerve damage. Symptoms such as numbness of the little finger and ring finger, arm pain, and limitation of fine finger movement may occur. If the symptoms of numbness in the ring finger and little finger persist and are not relieved, it is recommended to go to the hospital for relevant examinations and then follow the doctor’s instructions to give the corresponding treatment.