There are more reasons causing patients’ face dryness, mainly environmental factors, skin quality factors, nutritional deficiencies, poor living habits, etc., while disease factors are relatively rare. Usually simple face dryness will not cause obvious impact on patients, if accompanied by serious erythema, papules and other pathological changes patients should promptly consult a doctor, and the current detailed description of the above-mentioned causes: 1, environmental factors: cold, dry environment due to the air moderately low, and at the same time, if patients do not pay attention to skin hydration, can cause the face epidermal cells water supply or oxygen supply is insufficient, can lead to dry skin, such cases mainly In the autumn and winter season; 2, skin quality factors: the current skin type is divided into dry, neutral, oily, oily and other types, and dry skin type sebaceous gland secretion is relatively small, at the same time, if the patient’s skin barrier damage may cause a corresponding increase in water loss through the epidermis, so dry skin type is easy to cause facial dryness; 3, nutritional deficiencies: some patients with partial eating habits lack vitamin E, vitamin A and other essential body Nutrients, which can lead to dry and dehydrated facial skin; 4, bad habits: such as patients do not do a good job of skin moisturizing, repeated use of alkaline face products, such as soap, soap and other repeated scrubbing, may cause damage to the skin stratum corneum and cause water loss, resulting in the formation of patients with dry facial symptoms; 5, disease factors: such as dry seborrheic dermatitis and other diseases may cause the patient’s local skin erythema and appear If the affected area is the face, it can cause a sense of tightness and dryness on the face. In addition, some patients with recurrent facial allergies may also have scaly and dry skin symptoms.