Sudden numbness of the hands of patients may be due to acute cerebrovascular disease, peripheral neuropathy, vegetative nerve dysfunction caused by the following: 1, acute cerebrovascular disease: the patient has a brain stem infarction or bilateral cerebral hemisphere infarction, the phenomenon of sudden numbness of the hands of the patient may also be accompanied by the symptom of limb weakness, you can be clearly diagnosed through the craniocerebral CT, craniocerebral MRI, etc. 2, peripheral neuropathy: peripheral neuropathy is also a common cause of this etiology, mainly due to diabetes, electrolyte disorders, thyroid dysfunction, drug factors, poisoning, etc. Peripheral neuropathy: peripheral neuropathy is also a common cause of sudden numbness of the hands, caused by this cause of disease are diabetes mellitus, electrolyte disorders, thyroid dysfunction, drug factors, poisoning, etc., the patient can be clearly diagnosed by means of electromyography, cerebrospinal fluid examination, etc. 3, vegetative nerve dysfunction: when a person is in the state of emotional excitement, will lead to vegetative nerve dysfunction, may also cause sudden numbness of the hands of patients. It may also cause sudden numbness of the patient’s hands, the patient can be treated by oral glutamine, vitamin B1 and other drugs to regulate the function of plant nerves.