Acne can be caused by various factors, including hormones, bacteria, genetics, and lifestyle choices. Hormonal imbalances, especially during puberty, menstruation, and pregnancy, play a significant role in acne development. Bacteria on the skin, particularly Propionibacterium acnes, can also contribute to acne formation by infecting clogged pores. It’s often a combination of these factors that leads to acne breakouts. If you’re experiencing persistent acne, it’s recommended to consult a dermatologist for a proper diagnosis and treatment plan.