A face full of blackheads grainy and full, commonly in teenagers, there are many reasons for this phenomenon, such as endocrine factors, skin cleaning factors, follicle keratinization factors and genetic factors. Usually the treatment of blackheads has a certain commonality, individual cases may also need to be selected according to the severity of: a. Causes: 1, endocrine factors: may be in the rapid growth and development period endocrine disorders, androgen secretion is too strong and cause a full face of blackheads grain full; 2, skin cleaning factors: may be due to poor skin cleaning or the use of oily cosmetics, resulting in skin Oil secretion blocking the pores, resulting in a full face of blackheads; 3, follicular keratinization factors: hyperkeratinization of the follicle mouth, resulting in smaller follicle mouth, resulting in sebum discharge obstruction, which leads to a full face of blackheads; 4, genetic factors: some people may also be family genetic caused by a full face of blackheads. Second, the treatment: 1, drug treatment: for the full face of blackhead grain full of the situation, because the area involves a large range, and through the skin care products and other effects on the treatment of blackheads is not obvious, so the appearance of patients with a high degree of pursuit, you can go to the dermatology consultation, under the guidance of doctors topical vitamin A acid ointment and ointment containing niacinamide, azelaic acid for local application treatment; 2, minimally invasive surgery: serious It is recommended to go to the dermatology department in time, generally can apply laser, freezing or ultraviolet light and other minimally invasive surgery to inhibit the secretion of sebaceous glands, and then also need to carry out continuous pore cleaning and skin maintenance to avoid recurrence; 3, Chinese medicine treatment: from the perspective of traditional Chinese medicine, full face blackhead grain full also with fire and other diseases, so you can also use some defeat of fire Chinese medicine or Chinese medicine to treat. Third, precautions: 1, skin care: during the treatment period, should also pay attention to the use of warm water or mild cleansing products to wash the face, to keep the face clean, to avoid irritating cosmetics, skin care products to further damage the skin; 2, improve the home environment: living environment, such as towels, bedding and other daily consumables, should pay attention to timely cleaning and replacement, to avoid further stimulation of the face; 3, other. Daily also avoid emotional stress, staying up late or eating spicy and stimulating, greasy food, such as hot pot, barbecue, etc., to maintain good habits of life and rest, for reducing and improving blackheads also help.