See also: Puberty Pubic hair forms in response to the increasing levels of testosterone in both girls and boys. Those hair follicles are located and stimulated in androgen sensitive areas develop pubic hair. Before the onset of puberty , the genital area of both boys and girls has very fine vellus hair stage 1. In males, the first pubic hair appears as a few sparse hairs that are usually thin on the scrotum or at the upper base of the penis stage 2. Within a year, hairs around the base of the penis are abundant stage 3.
Take charge of your health. Sign up for HealthyWomen newsletters: But most of the time it's nothing to worry about, says a new report from a leading group of U. It's not uncommon for young children to show certain traits associated with puberty, including some pubic hair, underarm hair and the beginnings of breast development, said Dr. Paul Kaplowitz, who led the American Academy of Pediatrics report. He said early signs of sexual maturation are one of the most common reasons that children are referred to pediatric endocrinologists—specialists in treating hormone-related disorders.
Advanced Search Premature pubarche, or the development of pubic hair before the age of 8 in girls or 9 in boys, is most commonly caused by premature adrenarche. Adrenarche is the maturation of the adrenal zona reticularis in both boys and girls, resulting in the development of pubic hair, axillary hair, and adult apocrine body odor. Although originally thought to be a benign variant of normal development, premature adrenarche has been associated with insulin resistance and the later development of metabolic syndrome and polycystic ovary syndrome.
The parents are nonconsanguineous. There is no family history of congenital adrenal hyperplasia or precocious development of pubic hair. In particular, there was no breast enlargement, clitoromegaly, or hirsutism. Answer and discussion on next page Answer: