The causes of dandruff may be related to physiological factors such as mental stress and improper care, as well as pathological factors such as seborrheic dermatitis and psoriasis. 1. Physiological factors: Physiological factors such as dry climate, lack of sleep, improper washing and care, frequent consumption of spicy and stimulating food, lack of vitamin B, as well as a high degree of mental tension, anxiety, stress, etc., may affect the skin’s metabolism, resulting in symptoms of dandruff. 2. Pathological factors: Pathological factors such as seborrheic dermatitis, psoriasis, asbestos furfuraceous rash, ringworm and so on, may trigger the phenomenon of increased dandruff. Dandruff, daily should maintain a good diet, to light, eat more fresh vegetables and fruits, go to bed early and get up early, strengthen the exercise, is conducive to improve the phenomenon of excessive dandruff, if the patient’s dandruff symptoms are serious, or accompanied by other symptoms, it is recommended to go to the hospital in time to consult the doctor for treatment.