Acne pimples on the face are a manifestation of acne. It is considered to be related to factors such as heredity, androgen level, sebum overproduction, proliferation of Propionibacterium acnes, and abnormal keratinization of follicular sebaceous gland ducts. 1. Heredity: Parents or elders in the family who often have acne and pimples are affected by genetic factors and their children are prone to acne. 2. Androgen level: For example, in polycystic ovary syndrome, the androgen level in the body is too high, which will have an effect on sebum secretion, leading to increased sebum secretion and causing acne. 3. Excessive sebum secretion: Under the action of androgens in the body, sebaceous glands of adolescent men and women secrete a large amount of oil, which can lead to localized acne if the mouth of the hair follicle is blocked. 4. Proliferation of Propionibacterium acnes: Propionibacterium acnes is the main causative organism leading to the development of acne, which can break down sebum to produce inflammatory factors and cause inflammatory reactions. 5. Abnormal keratinization of follicular sebaceous gland ducts: Excessive keratinization of the follicular opening leads to clogged pores, making it easy to form acne. If the above manifestations occur, it is recommended to go to the dermatology department of the hospital in a timely manner, under the guidance of the doctor to give medication to regulate, can help to improve.