The patient’s two hands are always numb, mainly consider the following causes: 1. To consider is caused by peripheral neuropathy, for example, because of diabetes resulting in peripheral nerve dystrophy or long-term heavy alcohol consumption, gastric ulcer, gastrointestinal disorders, resulting in B vitamin deficiency, and cause the patient’s peripheral nerve damage, the patient will have two hands symmetrical numbness, pain symptoms; 2. The patient’s two hands Always numb, if it is easy to attack in the case of improper posture, to consider is related to cervical spondylosis, mainly seen in neurogenic cervical spondylosis, patients in the cervical spine degeneration or cervical disc herniation on the basis of improper posture, prone to numbness in both hands, patients will have chronic muscle strain symptoms, often with pain in the neck, shoulder, back, hand numbness symptoms onset.