There are both physiological and pathological causes of flushing. There are some healthy people who have better peripheral blood circulation, and their faces are more flushed with a little activity. Some people blush when they are shy, angry, or ashamed, and some people can blush because of alcohol consumption. People who live in the mountains because the air is thinner, the body needs more red blood cells to absorb enough oxygen, and once the red blood cells carry more hemoglobin, the color of the face will be more red, and some people blush because of menopause. For these physiological blushing need not be concerned, usually pay attention to the cold environment or when the temperature changes rapidly, pay attention to the skin moisturizing and warmth, especially in dry and high temperature indoor, face if you feel dry to timely hydration. You can wear a scarf or mask when the cold air is outside to avoid excessive temperature and humidity differences, which can cause the expanded microvessels to contract rapidly in the cold to form red blood cells. In addition, in addition to these physiological blushing, there are some people whose blushing is caused by systemic diseases, such as hypertension, tuberculosis, lupus erythematosus, etc. As for these pathological blushing, you need to go to the hospital to do a full body checkup in a timely manner and ask your doctor for treatment.