There are no eight clinical contraindications to drinking red wine, but red wine is not recommended for people with certain diseases or special populations. Red wine is mainly made from grapes, containing grape juice, alcohol, pectin, tannins, vitamins, minerals and phytochemicals, etc. Moderate drinking red wine has certain benefits, but excessive drinking red wine will also have some impact on the body, the following groups of people should avoid drinking red wine: 1, allergic: the main components of red wine is grape juice, alcohol, grapes or alcohol allergy to people, need to contraindicate drinking red wine, so as not to induce a rash, throat edema and other allergic reactions; 2, pregnant women, children, adolescents: alcohol can enter the fetus through the placental tissue, which may affect the growth and development of the fetus, so pregnant women need to avoid drinking red wine; children, adolescents in the growth and development stage, it is not recommended to drink excessive red wine; 3, menstruating women: alcohol has a blood-activating effect, in the menstrual cycle or near Menstrual time women, should avoid drinking red wine, so as not to increase bleeding; 4, liver disease: alcohol needs to be metabolized by the liver, liver disease people are not suitable for drinking alcoholic beverages to prevent liver damage, and excessive consumption of red wine is not conducive to the treatment of disease; 5, gastrointestinal diseases: alcohol in red wine, tannins and other ingredients can stimulate the gastrointestinal tract, which can lead to abdominal pain, diarrhea and other gastrointestinal discomfort symptoms Therefore, the presence of gastrointestinal pathology, as well as fasting state of the population should avoid drinking red wine; 6, diabetes: red wine contains glucose components, in the body can produce energy, diabetic people need to drink red wine in limited quantities to avoid aggravating the disease; 7, poor immune function: alcohol acts on the body, will affect the normal performance of immune function, so the poor immune function of the population need to avoid drinking red wine.