The phenomenon of lips turning purple every time you drink beer may be caused by the beer being too cold, or it may be caused by allergic reactions or heart disease. 1. Beer is too cold: due to the body’s large intake of ice-cold beer and lead to blood stagnation in the lips, the operation is not smooth, resulting in the phenomenon of purple lips. 2. Allergic reaction: some people are allergic to alcohol and have a toxic reaction, so there will be every time you drink beer lips will be purple phenomenon. 3. Heart disease: due to the body itself there are heart diseases such as cardiac structural damage or functional abnormalities, and after drinking alcohol can lead to insufficient blood supply to the heart, ischemia and hypoxia and other symptoms, so there may be purple lips phenomenon, such as coronary atherosclerotic heart disease. Every time you drink beer lips will be purple may also be other reasons, it is recommended to timely hospital consultation, identify the cause and take corresponding treatment measures.