The common clinical reasons for white lips without blood color include physiological factors such as cold air and emotional excitement, as well as pathological factors such as anemia and hypoglycemia. 1. Physiological factors: the weather is too cold or emotional excitement, the lip skin capillaries are in a state of contraction caused by the disappearance of local blood color. This kind of situation usually does not need special treatment, by adding clothing or relieve tension, the relevant symptoms can disappear. 2. Pathological factors: whitening of the lips is mostly seen in the anemia population, the body’s peripheral blood in the red blood cells, hemoglobin is reduced and lower than the lower limit of the normal range, resulting in its inability to the surrounding tissues and organs to fully feed the blood supply, the clinical manifestations of whitening of the lips, fatigue, dizziness, and so on. 3. Patients with hypoglycemia will also have white lips, and the whole blood circulation will be impaired, with clinical manifestations such as bloodless face, generalized weakness and dizziness. If the white lips are caused by anemia or hypoglycemia, it is recommended to take measures as soon as possible and seek medical treatment if necessary.