After drinking alcohol arm numbness, pain causes are as follows: first, consider alcoholic peripheral neuropathy, the human body after drinking large amounts of alcohol, alcohol damage to peripheral nerves, resulting in demyelination changes in peripheral nerves, the patient appears arm numbness, pain, muscle atrophy over time, treatment is recommended that the patient abstain from alcohol, high dose supplement B vitamins, while taking acupuncture, massage and other treatments. Secondly, arm numbness and pain after drinking are clinically seen in cerebrovascular diseases caused by alcohol consumption, which can be seen in cerebral infarction or cerebral microhemorrhage, resulting in arm numbness and pain on one side, mostly in thalamic lesions, which can be diagnosed by CT or nuclear magnetic examination of the head, and treatment is given to activate blood stasis or dehydration and lower cranial pressure for cerebrovascular diseases.