Damage to a female's pituitary gland just before puberty may result in

The pituitary gland produces LH (luteinising hormone) and FSH (follicle stimulating hormone) which stimulate the gonads in two ways:

FSH stimulates growth of the sex cells, the ovarian follicles in a woman, the seminiferous tubules and early stages of sperm production in a man. LH in a woman, in high concentration, induces ovulation in a Graafian follicle which has been primed with FSH.

In addition, LH and FSH stimulate the production of testosterone (primarily) by the testes in a man, estrogens by the ovaries in a woman. It should be noted that they are also produced in small quantities by the adrenal cortex.