What is a common cause of acne?

Hormonal fluctuations are a common cause of acne because they can lead to increased oil production in the skin. When hormones fluctuate, particularly during puberty, menstruation, pregnancy, or due to conditions like polycystic ovary syndrome (PCOS), the sebaceous glands become more active. This heightened activity can result in the overproduction of sebum, which can clog pores and create an environment suitable for acne-causing bacteria to thrive.

While factors like excessive scrubbing can irritate the skin and contribute to breakouts, they are not as fundamental as hormonal changes. A high sugar diet can impact overall skin health and contribute to inflammation, but hormonal changes directly influence the mechanisms that lead to acne development. Similarly, smoking is associated with various skin issues and can exacerbate existing problems, but it is not a primary cause of acne itself. In contrast, hormonal fluctuations play a direct and significant role in the formation of acne lesions.