The color is close to the normal skin color. If you look closely, you can develop a lot of white particles on your face by touching it. The reason for this disease is the following: 1, adolescence androgen secretion in the body increased facial oil secretion, a large amount of oil can not be discharged through the pores in a timely manner, retained in the pores will block the pores to form a closed mouth. 2, long-term stay up late, usually do not pay attention to facial cleaning, will also make the accumulation of oil blocked pores and the formation of closed mouth. 3, usually picky eating leads to unbalanced nutrition in the body so that vitamin A, vitamin B The newest and most important thing is to have a good understanding of the newest and most important thing. To improve first pay attention to facial cleanliness, do not sleep with makeup, every morning and evening will be clean face. A reasonable diet to eat the right amount of coarse fiber food, when you go out to take sun protection measures to reduce the stimulation of ultraviolet light on the skin.