What is the recommended age range for normal onset of puberty in girls?

The recommended age range for normal onset of puberty in girls is generally considered to be between 8 and 13 years. This range reflects the biological differences in the timing of physical development associated with puberty, which can be influenced by various factors including genetics, nutrition, and environmental influences.

Puberty typically begins with thelarche (breast development), followed by other changes such as growth spurts and the onset of menstruation. The onset before age 8 is usually classified as precocious puberty, while the onset after age 13 may indicate delayed puberty. Thus, the age range of 8-13 years captures the typical variation observed in the onset of puberty for the majority of girls. Knowing this helps in assessing developmental milestones and addressing concerns regarding normal growth patterns during adolescence.