Androgens, chiefly testosterone, trigger the development of male secondary sex characteristics at puberty. Estrogens, especially estradiol, and progesterone initiate the development of female secondary sex characteristics. This table lists some of the secondary sex characteristics in males and females.
Secondary Sex Characteristics
Males deep voice, male hair growth pattern, increased muscle size, increased aggressiveness
Females enlarged breasts, fat deposition in hips and breasts, water retention, changes in calcium metabolism and bone deposition