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Puberty is a critical phase, typically beginning between the ages of 8 and 13 in girls and 9 and 14 in boys, though timing can vary based on genetics, environmental factors, and overall health. This period is characterized by the development of secondary sexual characteristics and the attainment of reproductive potential. Endocrine changes underpin puberty, with hormonal surges of Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH) instigated by Gonadotropin-Releasing Hormone (GnRH)...
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Premature Pubarche: A Pragmatic Approach.

Paul B Kaplowitz1

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|April 27, 2024
PubMed
Summary

Premature pubarche (PP) is common in children aged 5-9. Testing is usually unnecessary unless red flags like rapid growth are present, as treatable conditions are unlikely.

Keywords:
Bone ageNonclassical congenital adrenal hyperplasiaPremature adrenarchePremature pubarchePubic hair of infancy

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Area of Science:

  • Pediatrics
  • Endocrinology

Background:

  • Premature pubarche (PP) is a frequent and typically benign variant of normal puberty in children aged 5–9 years.
  • Some healthcare providers routinely order diagnostic tests, including laboratory analysis and bone age assessment, to exclude other conditions such as nonclassic congenital adrenal hyperplasia and gonadal or adrenal tumors.

Purpose of the Study:

  • To review the natural history of premature pubarche.
  • To evaluate the necessity of routine laboratory testing and bone age assessment in children with PP.

Main Methods:

  • Literature review of studies on the natural history of premature pubarche.
  • Analysis of evidence regarding the diagnostic yield of laboratory testing and bone age assessment in PP.
  • Evaluation of clinical red flags associated with PP.

Main Results:

  • Studies suggest that without specific clinical indicators like rapid growth, progression, or genital enlargement, the likelihood of identifying a treatable condition is low.
  • The natural history of PP is generally benign.

Conclusions:

  • Routine laboratory testing and bone age assessment are not recommended for patients with premature pubarche.
  • Testing should be reserved for cases exhibiting red flags at the initial clinical evaluation, such as rapid progression or significant genital development.