First sign of puberty in girls –: (A) Puberchy, (B) Thelarchy, (C) Growth spurt, (D) Menarche
Answer is B. In girls, the first visible sign of puberty is the appearance of breast buds (Thelarche), between 8-12 years of age.
In boys the first visible sign of puberty is testicular enlargement, beginning as early as 9% yr.