The numbness of the scalp after drinking may be due to the stimulation of the brain by the alcohol content, or it may be due to alcohol allergy, or the obstruction of the blood supply to the brain. 1. Alcohol components stimulate the brain: scalp numbness after drinking alcohol, may be due to the composition of alcohol, stimulate the brain, alcohol has an anesthetic effect, the body lacks the enzyme to break down the alcohol, the scalp caused by the numbness of the situation. 2. Alcohol allergy: If there is a numbness of the scalp after drinking, it may also be caused by alcohol allergy, accompanied by panic, chest tightness, facial flushing and other clinical manifestations. 3. brain blood supply disorders: if the scalp numbness after drinking alcohol, may be due to blood supply disorders in the brain, resulting in insufficient blood supply and oxygen supply to the scalp, manifested in numbness, accompanied by headache, serious alcoholism can cause peripheral neuropathy. If the scalp numbness after drinking alcohol, it is recommended to immediately stop drinking alcohol, abnormalities, timely medical treatment, and follow the doctor’s instructions for symptomatic intervention.