Is it normal for a three year old girl to have hair?

Hair growth in three-year-old girls may be normal, but it may also be abnormal due to abnormal hormone secretion.
It may be normal for a three-year-old girl to grow sweaty hair if her growth and development are otherwise normal. It may be due to genetic factors, if one of the parents has more sweaty hair, the children may be three-year-old long hair.
But it may also be caused by abnormal hormone secretion. Three-year-old girl long sweat hair may be related to diet, such as a long time to eat too much food containing hormones, resulting in hormone disorders in the body of the three-year-old girl, androgen secretion, and then lead to the situation of long hair.
It is recommended that parents should take their children to regular hospitals in a timely manner, need to check whether the hormone secretion is abnormal, under the guidance of professional doctors to take targeted measures.