Which is the hormone that brings about changes in girls during puberty?
Estrogen is essential for development of secondary sex organs and external female sex characters like breasts, high pitch voice at puberty. The main function is the tissue growth and cell proliferation in specific areas of body. It promotes the development and maintenance of female reproductive structures. It assists in the control of fluid and electrolyte balance within the body, ensuring that our skin retains moisture. It prepares the follicle for the release of an egg. It controls the changes in our cervical mucus. It prepares our internal environment for fertility making it more sperm friendly.