The yellowing of the whites of the eyes can be caused by physiological factors, external stimuli, but also can suggest that the liver and gallbladder system lesions, if the symptoms continue to be unrelieved, it is recommended to consult a doctor in a timely manner. 1. Physiological factors: normal people with age, metabolic function gradually weakened, part of the metabolic waste can not be discharged in a timely manner, accumulation in the white part of the eye, the white of the eye can appear yellow phenomenon, belong to the body’s normal physiological phenomenon. 2. External stimuli: such as ultraviolet rays, sand, dust and other external environmental stimuli, can also be induced by the phenomenon of yellowing of the white of the eyes. 3. Hepatobiliary system lesions: such as hepatitis, cirrhosis, bile duct obstruction, etc., can lead to the appearance of jaundice, manifested as yellow staining of the skin and sclera, in addition, the patient can also be accompanied by abdominal pain, nausea, anorexia, grayish, fatigue, tiredness, mental depression and other symptoms. When the phenomenon of yellowing of the whites of the eyes persists without relief or is accompanied by other discomforts, the patient should consult a doctor in a timely manner to find out the cause of the disease under the guidance of the doctor, and follow the doctor’s instructions to carry out the appropriate treatment if necessary.