Regarding complete or central precocious puberty, which statement is most accurate?

Regarding complete or central precocious puberty, which statement is most accurate?

• A. Is more common in boys
• B. CNS tumors are a common cause of central precocious puberty in girls
• C. Usually idiopathic in girls
• D. Precocious puberty can affect multiple domains of development

Answer: (C)

Central precocious puberty happens when the brain triggers early activation of the reproductive axis, so puberty starts sooner than normal. In girls, most cases of central precocious puberty are idiopathic, meaning no identifiable brain problem is found. That makes the statement “usually idiopathic in girls” the most accurate choice. CNS tumors or other brain lesions can cause CPP, but in girls they are not the common cause (they’re more often a concern in boys or when there are neurologic signs). The idea that CPP is more common in boys is incorrect, and while puberty can bring changes that affect growth, bone age, and psychosocial development, the strongest, most specific point about central precocious puberty in girls is its idiopathic nature. If a girl presents very early or with concerning features, clinicians still evaluate for potential CNS causes, but overall epidemiology supports idiopathic cases in girls.

Central precocious puberty happens when the brain triggers early activation of the reproductive axis, so puberty starts sooner than normal. In girls, most cases of central precocious puberty are idiopathic, meaning no identifiable brain problem is found. That makes the statement “usually idiopathic in girls” the most accurate choice. CNS tumors or other brain lesions can cause CPP, but in girls they are not the common cause (they’re more often a concern in boys or when there are neurologic signs). The idea that CPP is more common in boys is incorrect, and while puberty can bring changes that affect growth, bone age, and psychosocial development, the strongest, most specific point about central precocious puberty in girls is its idiopathic nature. If a girl presents very early or with concerning features, clinicians still evaluate for potential CNS causes, but overall epidemiology supports idiopathic cases in girls.