Sebaceous glands is secreted overmuch, cannot seasonable eduction, accumulate within wool bursa, the skin is fat, pore is bulky, easy appear black head, hoary head and acne.

• 皮脂腺分泌过多,不能及时排出,积于毛囊内,皮肤油腻,毛孔粗大，易出现黑头、白头及痤疮。