The use of alkaline shampoo, long-term late night, eating greasy food, etc., resulting in excessive scalp oil secretion, a large amount of oil can not be discharged in a timely manner in the pores of the accumulation, blockage, bacterial breeding and the formation of folliculitis, folliculitis crust off with the hand picking the pores of the dry oil together with out, so you will see white particles. There are also endocrine disorders that lead to increased secretion of sebaceous glands in the head, and white particles will appear when you pick your scalp with your hands. Usually do not eat stimulating foods, animal fats and fried foods, eat a light diet, drink more water, exercise properly to promote gastrointestinal motility, maintain a daily bowel movement, maintain adequate sleep and a happy mood, wash your hair with a shampoo that does not contain silicone oil, the water temperature should not be too high to keep it at about 37 degrees Celsius, which can reduce the secretion of head oil, so that the symptoms can be improved.