Suddenly there are many blackheads on the nose, which is mostly a manifestation of acne, and can be related to local sebum secretion in large quantities, abnormal keratinization of follicular sebaceous gland ducts and other etiological factors. The production of acne blackheads may be related to the increase in sebum secretion, especially after puberty, estrogen and androgen level imbalance or androgen elevation, sebum secretion is more; at the same time, the follicle sebaceous gland conduit at the keratinocyte formation of hyperkeratosis, resulting in sebum discharge is blocked, the keratin plugs and sebum accumulates in the mouth of the hair follicle, the formation of acne, the lipid plugs oxidized and thus become blackheads acne. Blackheads, if more serious, will affect the aesthetics, should seek medical attention in a timely manner, in accordance with the doctor’s instructions standardized treatment.