Most of the acne under girls is caused by folliculitis. There are many reasons for this situation, such as not paying attention to the hygiene below, often wearing tight pants or chemical fiber underwear, not wearing cotton underpants, not wearing loose pants, resulting in suffocation in private places, so the increase of secretions will lead to acne. If women's resistance is very poor, they often stay up late, have too much mental pressure or tension, are in a bad mood, depression, etc., which may lead to acne. If the hormone level fluctuates, for example, the androgen secretion in the body is relatively high, it may also lead to acne. If you often eat spicy and stimulating food, it may also lead to internal fire, leading to the occurrence of acne, so you'd better eat light, pay attention to the hygiene of your private parts, and also pay attention to the regular work and rest.