Acne around the forehead and mouth may be due to closed mouth acne, which is related to factors such as androgen levels, large increase in sebum secretion, abnormal keratinization of hair follicle ducts, and propagation of Propionibacterium acnes.
1. Androgen level: After puberty, the level of androgen in the body rises rapidly, which will cause the sebaceous glands to develop and produce a large amount of oil, which will block the opening of the hair follicles, thus increasing the chances of the above symptoms occurring.
2. Sebaceous glands produce a lot of sebum: prolonged staying up late, excessive mental stress, high-fat diet, improper cleansing, use of low-quality cosmetics, etc., may cause a large increase in sebum secretion, which will lead to the symptoms of acne around the forehead and mouth.
3. Abnormal follicular duct keratinization: When local hair follicles are over-keratinized and become smaller and narrower, the contents of sebaceous glands can’t be discharged in time, which will also induce the symptoms of acne.
4. Propionibacterium acnes reproduction: Microorganisms such as Propionibacterium acnes grow and reproduce in large numbers in hair follicles and on the surface of the skin, stimulating the formation of inflammatory reactions in hair follicles, which can also lead to symptoms of acne.
It is recommended that patients with symptoms of acne around the forehead and mouth should go to a regular hospital and follow the doctor’s instructions for treatment, rather than blindly using their own medication.