Pustular acne is considered to be pustular acne, which is related to exuberant secretion of androgens, propagation of Propionibacterium acnes, poor dietary habits, emotional factors, and hereditary factors. 1. Excessive secretion of androgens: Excessive secretion of androgens in the body will induce an increase in sebaceous gland secretion, which will easily induce acne. 2. Propionibacterium acnes reproduction: The growth and reproduction of microorganisms such as Propionibacterium acnes in the hair follicles and the immune-inflammatory reaction will also induce acne. 3. Bad dietary habits: Staying up late, working hard, smoking, drinking heavily, eating spicy and greasy ingredients are also likely to cause an increase in the oily secretion of the hair follicles, which can trigger acne. 4. Emotional factors: mental tension, anxiety, depression and other states are also prone to induce acne. 5. Genetic factors: If one of the parents has a history of pustular acne when they were young, the next generation has a certain genetic factor. There may be other causes of pustular acne, so it is recommended to go to the hospital in time for examination to clarify the cause.