Many people think that black eyes can be caused if people can not sleep adequately. In fact, the formation of black eyes is a symbol of five kinds of disease like rhinitis, abnormal menstruation and deficiency of the kidney. 

1. rhinitis
Rhinitis can seriously cause black eyes. If people always sneeze and snivel, the blood around venous sinus under the eyes can be increased to cause the dark circles. If people have been attacked by rhinitis, they should deal with the disease positively.

2. abnormal menstruation
The black eyes can also be caused by abnormal menstruation and dysmenorrhea. According to the traditional Chinese medicine, both abnormal menstruation and dysmenorrhea can be caused by the irregular movement of blood inside the human body. The formation of dark circles is just the facial symbol of the irregular movement of blood. In addition, the black eyes can also attack some women with functional metrorrhagia. Therefore, it is necessary for women to adjust their bodies to prevent dark circles.

3. deficiency of the kidney
The traditional medicine thinks that black eyes are mainly caused by deficiency of the kidney. When the deficiency of the kidney occurs, the eyes can not be well nourished. Thus, the eyes will become spiritless and the rim of the eye can become dark. The unhealthy habits in our daily life can easily cause dark circles. In everyday life, people must form regular living habits and prevent excessive fatigue. The intake of the foods containing calcium can be moderately increased.

4. chronic gastric disease
If people are always troubled by weak digestive functions and gastritis, the black eyes can be caused. It is necessary for people to deal with the chronic gastric disease. At the same time, people must actively adjust the functions of stomach and intestines. Reasonable diet and dietary sanitation can protect the stomach and intestines for the human body.

5. liver disease
If people are troubled by chronic liver disease and abnormal liver functions, the black eyes can exist for a long time. The patients with liver disease must decrease the burdens of liver and repair the liver cells so as to restore the functions of liver. They must supplement adequate protein to maintain the reproduction of liver cells. In order to maintain the normal metabolism of liver cells, the patients must absorb adequate carbohydrate and vitamin E. At the same time, people must maintain the low-fat diet.