What causes the mouth to turn black and purple? What causes the mouth to turn black and purple?

Lips are the most sensitive and soft place on the face, and there are many blood vessels on the lips. Normal blood flow will make lips look full and rosy, which is a witness to human health. But there will be purple, black, white lips and so on. What causes the discoloration of lips?

It's cold and cold

In cold weather, lips are more likely to appear purple-black, which may be caused by the influence of cold weather on blood. When the skin is frozen, it will cause the nerve center to immediately direct the contraction of skin blood vessels to reduce the heat dissipation in the body. Once frozen for a long time, nerve sensation is abnormal, which affects blood vessel dilation and leads to slow blood flow. A large amount of reduced hemoglobin is stored in the lips, which leads to the lips turning blue-purple.

Physical illness

Black lips

If your lips are black, it may be due to digestive diseases, such as abdominal pain, constipation, diarrhea and other discomfort. If the lips are black and pigmentation is found at the edge of the lips, it can be thought that it is caused by chronic adrenal cortical dysfunction.

Lip purple

The reason of purple lips may be that the body suffers from chronic obstructive pulmonary disease, emphysema and other diseases, which leads to the decrease of oxygen content in the blood. In addition, patients with congenital heart disease may also have purple lips.

White lips

The causes of diseases that lead to lip whitening may be anemia, or diabetes, which leads to imbalance of body hormones, or kidney disease, which weakens the body's water retention capacity, leading to lip whitening and so on.

Yellowing of lips

The most typical disease of yellow lips is suffering from hepatitis B, which is a symptom of aggravation of hepatitis B. If yellow lips are accompanied by dry skin, dull complexion and other symptoms, you must seek medical attention in time.

Qi deficiency and excessive fire

People with strong body fire may have dark red or purple lips. The greater the anger, the darker the color of the lips will be. In addition, if you are a person with qi deficiency, you may also have physical fatigue, lethargy and pale lips.

insufficiency of Qi and Blood

If you often stay up late or work irregularly, it may lead to problems in blood supply to your body and may also lead to black lips. Especially in patients who have not recovered from a long illness, the body consumes more qi and blood, and it is easy to turn pale because of insufficient qi and blood.

malnutrition

If the body is in a state of insufficient nutrition supply for a long time, it is easy to cause the color of lips to change. Long-term consumption of sweet, greasy, fried, cold and other foods, on the one hand, leads to unbalanced nutrient intake of the body, which is easy to affect qi and blood, on the other hand, it is easy to cause the body to produce moisture and accumulate pigments. In the long run, the lips are black and white.