Facial flakiness may be caused by skin dehydration, or it may be caused by seborrheic dermatitis, contact dermatitis, ringworm, psoriasis and other diseases. 1. Skin dehydration: If the recent facial skin moisturizing work is not in place, resulting in skin dehydration, become dry, there will be flaking, is a normal physiological phenomenon. 2. Seborrheic dermatitis: the etiology of this disease is not yet clear, and studies have shown that it may be related to heredity, pathogenic bacterial infections, neurological dysfunction, immune dysfunction, and improper eating habits. Typical skin damage is characterized by yellow-red patches with greasy scales, so facial flakes may be seborrheic dermatitis. 3. Contact dermatitis: the occurrence of this disease is mainly due to contact with allergens or irritants caused by an abnormal immune response, common allergens are creams, cosmetics, pollen, dust and so on. Common symptoms include erythema, itching and scaling at the skin lesions, which can be manifested as flaky skin on the face. 4. Ringworm of the face: due to the infection of facial skin by dermatophytes, it can be manifested as erythema, scaling, itching and other symptoms. Facial flakiness can also occur. 5. Psoriasis: when psoriasis occurs on the face, scaly red patches with itching may appear. It can also cause flakes on the face. There are many reasons for facial flakiness, if you exclude physiological factors, you need to go to the hospital to clarify the cause of the disease.