Frequent chin acne generally refers to frequent chin acne, which may be caused by abnormal androgen secretion, blocked hair follicles and inflammation. 1. Abnormal secretion of androgens: During puberty, the level of androgens in the body appears to increase, which will cause the sebaceous glands to increase in size and the sebum to gradually secrete too much. The shedding of dead skin cells and oil clog pores, thus forming the phenomenon of frequent acne on the chin. 2. Hair follicle blockage: Abnormal keratinization of the surrounding cells can lead to narrowing of the hair follicle opening, becoming smaller and blocked, so that sebum cannot be discharged normally and accumulates in the hair follicle opening to form acne gradually. 3. Inflammation: As teenagers mature, the secretion function of sebaceous glands increases significantly. Fatty acids in the cortex are more suitable for the growth and reproduction of Propionibacterium acnes. Then various triggering factors, inflammation occurs, inflammatory factor stimulation will lead to the phenomenon of frequent chin acne. It is recommended that patients with frequent acne on the chin go to the hospital in time and follow the doctor’s instructions for standardized treatment to avoid delaying the condition.