The lips are black, it is a "warning sign" that the body is in a health crisis!
Lack of oxygen is an important cause of dark lips
When the body's blood circulation is poor or hemoglobin is missing, it leads to a lack of oxygen supply, which in turn leads to hypoxia. In this case, the heart does not get enough oxygen, and it also does not have enough blood and oxygen to the various organs of the body.
At this time, in addition to the easy darkening of the lips, it will also be accompanied by complications such as dizziness and palpitations.
Kidney disease
In severe cases of kidney disease, the kidneys' filtration function is impaired and they are unable to effectively remove waste products and toxins from the body. These waste products and toxins accumulate in the body and can cause damage to multiple organs throughout the body, including the heart and vascular system. Heart and blood vessel problems can affect blood circulation, which in turn can lead to dark lips.
malnutrition
Malnutrition can also lead to dark lips, especially if there is a lack of vitamin C in the body. Because vitamin C acts as a reducing agent, it has the function of reducing melanin precipitation.
However, if people lack vitamin C in their daily life, their lips will become darker and darker, and even other black and purple spots will appear. Therefore, in your daily life, you may wish to eat more foods rich in vitamin C, such as lemons, oranges, prickly pears, etc.
Digestive system abnormalities
There are also digestive system abnormalities that tend to cause the human lips to turn black. The digestive system is a very important part of the human body, and if it goes wrong, food accumulates in the body, causing constipation, and some toxins are difficult to get rid of.
In addition to the dark lips, other symptoms of such patients are more common as poor appetite, abdominal distension, and in more severe cases, there is a possibility of polyps in the digestive tract.