What causes acne?
Disease description:
I often get acne on my face, which is not very aesthetically pleasing. What causes acne to develop?
Doctor's answer (1)
Dr. Liu Wenmin
Acne vulgaris, commonly known as acne, is a common skin condition that primarily occurs in areas with a high density of sebaceous glands, such as the face, back, and chest. The main causes of acne include the following factors:
1. Excessive sebum production: During puberty, hormonal changes—especially an increase in androgens—stimulate the sebaceous glands to produce excess oil.
2. Bacterial infection: Microorganisms such as Propionibacterium acnes multiply rapidly in the enclosed environment of the hair follicle, triggering an inflammatory response and resulting in red, swollen pimples.
3. Abnormal follicular keratinization: Excessive proliferation of keratinocytes at the opening of the hair follicle prevents normal shedding, leading to blockage of the follicle and the formation of comedones.
4. Additionally, emotional stress, genetic predisposition, immune factors, hormonal fluctuations, unhealthy dietary habits (such as consumption of spicy, greasy, or high-sugar foods), and poor lifestyle practices (such as staying up late and experiencing high levels of psychological stress) may also trigger or exacerbate acne.
When treating and preventing acne, it is important to consider these factors comprehensively and implement appropriate interventions.
