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What is What is the first sign of pubey in a girl? and explain in detail?
Ans: A. ThelarcheThe first physical sign of pubey in girls is usually a firm, tender lump under the center of the areola of one or both breasts; occurring on average at about 10.5 years of age. This is referred to as thelarche.Order of Signs of PubeyMales (TPAM)Females (TPM)Testicular enlargement (First sign)degPubarchedegAdrenarchedegMoustache & BearddegThelarche (First sign)degPubarchedegMenarchedeg Onset of PubeyMalesFemalesGrowth of testes ( 24 mL in volume or 2.5 cm in longest diameter) & thinning of scrotum are first signs of pubey (11- 12 year)deg.These are followed by pigmentation of scrotum & growth of penis & by pubarchedeg.Appearance of axillary hair usually occurs in mid-pubeydeg.In males, unlike in females, acceleration of growth is maximal at genital stages IV-V (typically between 13 & 14 years of age)deg.In males, growth spu occurs approximately 2 year later than in females & growth may continue beyond 18 years of agedeg.Breast development (thelarche) is usually first sign of pubey (10-11 years of age)Followed by the appearance of pubic hair (pubarche) 6-12 months laterdeg.Interval to the onset of menstrual activity (menarche) is usually 2-2.5 years, but may be as long as 6 yearsdeg.Peak height velocity occurs early (at breast stages 11-81 typically between 11-12 years of age) in girls and always precedes menarchedeg.Mean age of menarche is approximately 12.75 yearsdeg.