Forehead yellow face white can be caused by a variety of reasons, including irregular work and rest, various causes of anemia, sunscreen is not in place. 1. Lifestyle: If the patient’s day and night work and rest is not stable, long-term late night, etc., will lead to endocrine disorders, hormone secretion imbalance, resulting in abnormal gastrointestinal function, poor absorption of nutrients, the forehead skin darkness, oil secretion increased, the color of the wax yellow. 2. Anemia: If the patient’s own skin color is yellowish, this time the patient due to trauma blood loss, excessive menstrual flow or suffering from various blood diseases, resulting in anemia, so that the blood vessels in the reduction of red blood cells, the face of the capillaries rich and easy to show pale, and the forehead is the original yellow skin color contrast. 3. Sunscreen: many patients are not accustomed to going out with sun shading products, do not like to apply sunscreen, or sunscreen application amount is not in place, reapplication is not timely, resulting in the highest exposure of the forehead to receive a large number of ultraviolet rays caused by hyperpigmentation and become yellow, the face due to the wearing of masks and other factors to accept ultraviolet rays is less, and therefore relatively white. It is recommended that patients focus on adjusting their lifestyle, and if the symptoms do not improve or are accompanied by physical discomfort, they should seek immediate medical attention to avoid delays in their condition.