Puberty Flashcards
Changes during normal puberty
Increase in LH from pituitary from increase in GnH from the hypothalamus at night
Pulses stimulate a rise in estradiol levels
Precocious puberty
Appearance of secondary sex characteristics before the age of 8 in girls
Gonadotrophin-dependent puberty
HPG axis activated
May be idiopathic
Can be caused by CNS tumour and malformations
Gonatadtrophin-independent puberty
Presence of pubertal sex steroids
Disorders of the gonads or adrenals
Ingestion of estrogens
Should be managed by paediatric endocrinologist
Timing of puberty in girls
Between SEs 8.5-13
Average age 12.8
Incidence of precocious puberty
1:5-10,000
History points for precocious puberty
Age of onset Details and rate of progression of secondary sex characteristics Family history Neurological symptoms Exogenous steroid administration
Examination points for precocious puberty
Anthropometric measurements Tanner staging Skin lesions Neurological signs Signs of virilisation