Acne on the face of a 10-year-old girl is related to puberty. Its main triggering factors are related to hormone secretion during puberty, inadequate facial cleansing, spicy and stimulating diet as well as staying up late and high mental stress. 10-year-old girls in puberty, hormone secretion level is vigorous, oil secretion is more, so it is easy to cause facial acne. If necessary, you can go to the hospital to do endocrine six tests, and actively give treatment. It is not serious, just need to do a good job of facial cleaning diet management can be. At the same time, try to avoid spicy, stimulating and greasy food, and eat more vegetables and fruits. If acne is severe, it is recommended to consult a dermatologist for treatment under the evaluation of a specialist. Staying up late and stressing out is also a major cause of acne. It is recommended that you go to bed before 10:00 p.m., relax moderately, and combine work and rest, as well as take a warm bath before bed to promote sleep.