Before menopause (pre-menopause) oestrogen is made mainly by the ovaries. Around the time of menopause (peri-menopause), the ovaries stop making female hormones, including oestrogen. This usually happens when women are in their late 40's and early 50's.

Where is estrogen produced in the body?

The woman's ovaries make most estrogen hormones, although the adrenal glands and fat cells also make small amounts of the hormones.

Where is oestrogen produced in the ovary?

The pituitary gland produces FSH which causes the development of a follicle in the ovary. As the egg develops inside the follicle, the follicle produces the hormone oestrogen.