The age of onset of puberty varies according to gender, race, climate, environmental conditions, nutrition, and hereditary characteristics. It starts around the age of 10 in girls and 11 in boys. It is abnormal for signs of sexual development such as breast/testicular enlargement or genital hair growth to begin before the age of 8 in girls and 9 in boys, and further examination is required.
Early puberty is a condition that needs to be treated because it can lead to both behavioral and psychosocial problems in the child and short stature.
Puberty takes an average of 3-5 years to complete. The rapid progression of this period is considered abnormal and should be examined as it starts early. The onset of early sexual development is 10 times more common in girls than in boys. It usually develops due to the early start of the gland that regulates hormone secretion in the brain. Rarely, early sexual development may be observed in some diseases of the ovary/testis or adrenal gland.