Skin acne appears as conical papules in line with the mouths of hair follicles with yellowish-white or stippled black tips. Acne is a common skin condition characterized by the appearance of pimples on the cheeks, chin (jaw) and naso-cheek folds, forehead, back and other areas of high sebum production. These pimples appear conical in shape with yellowish-white or stippled black tips. A slight bump can be felt with the hand. In the center of the black papule is an enlarged pore lipid plug blocking the follicular opening, and by squeezing, the yellow translucent lipid plug contents can be squeezed out of the body. Acne itself is an early form of acne. If left untreated, it may turn into inflammatory papules, cysts, nodules and other moderate or severe acne manifestations in later stages, with symptoms such as pain and ulceration. Therefore, when acne appears on the skin, it is recommended to seek medical attention and actively cooperate with your doctor.