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What is The first sign of pubey in female is and explain in detail?
Thelarche is the first sign of pubey in a girl around the age of 10 yearsDefinition:- beginning of secondary (Postnatal) breast development at the onset of pubey in girlsTanner stage 2 breast development.Because of rising level of estradiol.Breast development in a male is termed as gynecomastia, not thelarche(Refer: Nelson's Textbook of Pediatrics, SAE, 1st edition, pg no. 926)