what are secondary sexual character in boys and girls

Secondary sex characteristics in boys

  • Under the influence of hormones, larynx grows prominently, vocal cords become longer and thicker, causing the voice to become hoarse.

  • Hair starts growing in the frontal region of the genital area.

  • Appearance of hair in other areas such as underarms, legs, chest, abdomen, back, and face.

  • Enlargement of testicles followed by penis.

  • More secretion of oil from the skin, resulting in the appearance of acne.

  • Testes grow and start producing sperms.

Secondary sex characteristics in girls

  • Increase in breast size and the darkening of the skin of nipples present at the tips of the breasts.

  • Appearance of hair in the genital area.

  • Appearance of hair in other areas such as underarms, face, hands, and legs.

  • Increase in the size of uterus and ovary.

  • Beginning of menstrual cycle.

  • More secretion of oil from the skin, resulting in the appearance of acne.

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In boys , it is the development of body hair on chests and other parts and in girls it is the development of breasts

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