What is the age range at which adrenarche typically occurs in girls?

Adrenarche typically occurs in girls between the ages of 5 to 8 years old. This is the period when the adrenal glands begin to produce increased levels of androgens, such as dehydroepiandrosterone (DHEA). This hormonal change marks the onset of the development of secondary sexual characteristics, such as pubic and axillary hair growth, and is an important milestone in puberty.

Understanding this timing is crucial for recognizing normal growth and development in pediatrics. It helps healthcare providers differentiate between normal variations in sexual maturity and potential pathological conditions. For example, if adrenarche occurs significantly earlier or later than this age range, it could indicate hormonal imbalances or disorders that may require further evaluation.

The age range reflects the typical biological process and aligns with developmental milestones in puberty, making it key knowledge for those in the field of family practice and pediatrics.