Which comes first, menstruation or the growth of pubic hair?

Generally, body hair develops before the first menstruation. This sequence is common in the pubertal development of girls.

Puberty in girls typically begins with breast development, which usually starts around the age of eight. Subsequently, around the age of ten, girls begin to develop pubic hair and other body hair. By about twelve years of age, most girls will experience their first menstrual period.

This developmental sequence is influenced by various factors, including nutritional status. Girls who are better nourished may enter puberty earlier, while those with poorer nutrition may start later. Therefore, when a girl notices the development of her breasts along with the growth of pubic and underarm hair, this indicates the onset of secondary sexual characteristics.