A 9-year-old girl with a long beard can take lifestyle adjustments, medication, laser hair removal and other ways. 1. Adjust the lifestyle: avoid staying up late, work and rest regularly. Appropriate physical exercise is conducive to the body’s metabolism. In addition, pay attention to adjust the eating habits, reduce eating food containing hormone ingredients such as ripe fruit or hormone feed fed poultry. All help to relieve the situation of 9-year-old girl with a long beard. 2. medication: if the disease is caused by the timely consultation, such as estrogen deficiency, need to take estradiol valerate tablets to supplement. Congenital adrenocortical hyperplasia girls can be manifested as hirsutism, amenorrhea, infertility, etc., need to use glucocorticosteroid, hydrocorticosteroid treatment under the guidance of the doctor. 3. Laser hair removal: If the beard situation is more serious, prone to low self-esteem, can be a professional dermatologist for laser hair removal treatment. If a 9-year-old girl has a beard because of heredity, such as her parents’ excessive body hair, there is no need to worry. If you suspect that the disease is caused by the disease, you should also consult a doctor in a timely manner to clarify the cause of the disease and standardize the treatment.