After drinking alcohol, people will have certain fever reactions, but the fever is mainly low fever, that is, the body temperature continues at 37.4-37.9 ℃, will not exceed 38 ℃, there are several reasons: 1, the most common factor is that after drinking alcohol will lead to the decomposition of alcohol in the body, in the role of ethanol dehydrogenase will be decomposed into acetaldehyde, acetaldehyde release into the blood will appear certain substances, such as interleukins, tumor necrosis factor and histamine. The above substances in the body will cause the central neuron temperature setting point to move up, which will lead to increased heat dissipation and reduced heat production in the body, which will lead to a certain fever. 2. After drinking alcohol, the body will experience a certain amount of hypoglycemia, and the body will experience a certain amount of self-protection during hypoglycemia, which will also lead to increased heat production, so it will lead to a fever.