Acne is primarily caused by excessive secretion from one's own sebaceous glands. There are various reasons for this excessive secretion, such as genetic constitution and dietary preferences for spicy, fried, or sweet foods. Frequent staying up late, anxiety, tension, or mood disturbances can also lead to this condition. Some women may experience acne related to menstrual disorders or hormonal imbalances. Once acne is noticed, it is best to seek proper medical treatment and avoid squeezing or picking with hands to prevent scarring or pockmarks. Besides medical treatment, it is essential to maintain a long-term diet avoidance, regulate eating habits, exercise regularly to boost immunity, sweat more, and possibly take medications that reduce sebaceous gland secretion.