Under normal circumstances, acne in 11-year-old boys does not affect height growth. Acne is usually not directly related to the body’s growth. The main reason for acne is due to excessive sebum secretion, hair follicle sebaceous gland duct blockage or bacterial infection, while height is related to the body’s genetics, nutrition, exercise and sleep factors. During the period of acne, pay attention to adjust the diet, avoid spicy, stimulating, high sugar and greasy food, regular rest, avoid staying up late, keep the local skin clean and hygienic, relaxed mood; if necessary, go to the hospital for androgen level check, under the guidance of the doctor symptomatic treatment.