What term refers to the onset of puberty before the age of 8 in girls?

The term that refers to the onset of puberty before the age of 8 in girls is precocious puberty. This condition is characterized by the early development of secondary sexual characteristics, such as breast development, pubic hair, and the onset of menstruation. In clinical settings, precocious puberty is typically defined as the onset of these changes prior to the age of 9 in boys and before the age of 8 in girls.

This early maturation may be due to various reasons, including hormonal imbalances or central nervous system disorders, and can have psychological and physical impacts on an affected child. It is crucial for healthcare providers to evaluate the underlying causes of precocious puberty to manage it effectively and prevent potential health complications associated with early sexual development.

The other terms do not accurately describe this condition; delayed puberty refers to the late onset of puberty, pseudoprecocious puberty involves signs of puberty due to external sources of hormones rather than internal hormonal processes, and menarche specifically refers to the first menstrual period, which is one of the later events in the process of puberty.