Common causes of beard growth in little girls include physiological factors and pathological factors (polycystic ovary syndrome, drugs, ovarian tumors, etc.), need to clarify the cause of the disease, for the cause of the disease, to take the appropriate medication, physical therapy, surgical treatment, etc., for treatment. 1. Physiological factors: generally little girls with the growth of age, after entering puberty, with the hormonal changes in the body, the secondary sexual characteristics will also appear, body hair will grow, such as armpit hair, pubic hair, beard, etc., the general little girl grows a beard is not a normal physiological phenomenon, do not need special treatment. 2. Pathological factors (1) polycystic ovary syndrome: after diagnosis, it is recommended that patients usually low-sugar, high-fiber diet, to improve poor dietary habits; if necessary, the periodic use of progesterone therapy, such as dydrogesterone, micronized progesterone, etc.; insulin resistance is serious, estrogen levels are low, can choose estrogen-progestogen cycle sequential treatment. (2) Drugs:If long-term use of glucocorticoid drugs, such as hydrocortisone, prednisone, etc., prone to hormonal side effects, the phenomenon of beard increase, long, to follow the doctor’s orders to gradually stop the use of hormonal drugs, can be relieved. (3) ovarian tumors: for ovarian tumors, according to their own situation, need to take surgical resection of the tumor, treatment, if necessary, with chemotherapy, can effectively improve the phenomenon of beard. It is recommended that if the patient suspects that the disease is caused by a timely visit to a regular hospital, follow the doctor’s instructions for reasonable treatment, medication, strictly comply with the doctor’s instructions for medication, not blindly self-medication.