Usually people say acne is acne. Acne is one of the most common diseases in cosmetic dermatology, which mostly occurs in adolescence. It is also called acne, pimple or acne, folliculitis, and usually occurs in the face, neck, chest and back, shoulders and upper arms. The main clinical manifestations are whitehead acne, blackhead acne, inflammatory papules, pustules, nodules and cysts. Except for children, about 80% ~ 90% people in the population suffer from this disease or have suffered from it (including mild diseases). Acne is a chronic skin disease that occurs in sebaceous glands of hair follicles. There are various factors, but the most direct factor is pore blockage. A zit on the chin indicates impaired renal function or endocrine system disorder. View the original post > >