Acne often occurs in men and women in their adolescence, but of course it can also occur in other age groups, which is mainly related to the characteristics of the onset of acne or pimples. First of all, the disease is caused by a variety of factors, such as oily skin, endocrine factors, clogged hair follicles, use of spicy and stimulating foods, etc. When you are in puberty or when sex hormones are in full swing, the sebaceous glands will increase in size and secretion. The sebum is a good nutrient for Propionibacterium acnes to reproduce, and the metabolites from the breakdown of sebum by Propionibacterium acnes will stimulate the skin, causing inflammation and hyperkeratosis of the hair follicle opening. Clogged follicles, increased sebum secretion, and Propionibacterium acnes multiplication can lead to pimples, pustules, and cysts in severe cases. It is very important to have a good diet and lifestyle habits. Avoiding spicy and stimulating foods, not staying up late, and keeping a relaxed mood can all reduce the recurrence of the disease. So when there is frequent acne, you should choose the right facial cleanser and cosmetics according to your skin type and doctor’s advice, and maintain good habits.