A drink of hot water on the sweat may be a normal phenomenon, may also be due to yin deficiency fire (body Yin essence loss, there is a deficiency of fire) and other factors, because the body of the yin fluid shortage, the internal heat, drink hot water may aggravate the internal heat, resulting in sweating symptoms. 1. Normal phenomenon: Due to the high temperature of hot water, after entering the human body may lead to an increase in body temperature, resulting in capillary expansion, sweat glands secrete sweat to help the body dissipate heat. Therefore, there will be a drink of hot water on the sweating situation. 2. Yin deficiency and fire: If you sweat more after drinking hot water, or often sweat in daily life, it may be due to Yin deficiency and fire caused by Yin deficiency and fire, Yin deficiency and fire patients due to the lack of Yin fluid in the body, the internal birth of the heat so there will be hot flashes (a burst of heat) night sweating (abnormal sweating after sleeping, waking up sweating to stop) of the situation, drink hot water, aggravate the situation of internal heat, so it will show a lot of sweating phenomenon. If you often have a lot of sweating when you drink hot water, it is recommended to go to the hospital in a timely manner to clarify the cause of the disease and get treatment as soon as possible.