The white skin on the face is considered to be related to physiological factors such as dry skin and foreign body stimulation, and also considered to be related to seborrheic dermatitis, psoriasis and pityriasis rosea. 1. Physiological factors: when the skin is excessively dry, foreign body frequent friction stimulation, can be manifested as white skin on the face. Usually relieved after replenishing moisture and relieving irritation, no special treatment is needed. 2. Seborrheic dermatitis: the cause of the disease is not yet clear, may be related to genetic factors, microbial factors, immune dysfunction and so on. When there is seborrheic dermatitis on the face, it can be manifested as itching, white flaking and skin erosion, redness and cracking. 3. Psoriasis: The cause of psoriasis is still unclear, and it may be related to genetic factors, environmental factors and so on. Usually the patient’s skin will appear red patches, covered with silver-white scales, and easily accompanied by itchy skin, dry skin and other uncomfortable symptoms, which is manifested as white skin on the face. 4. pityriasis rosea: the disease can also cause some patients with white skin on the face. The cause of pityriasis rosea is unknown and may be related to medication and viral infections. Patients will appear round or oval patches of local skin, also easy to cover the fine white scales, can be manifested as white skin on the face. Some people with pityriasis rosea are also prone to itchy skin, vesicles and other symptoms. It is recommended to pay attention to the skin care of people with white skin on the face, if there is a tendency to aggravate, should consult a doctor in time.