Oestrogen blood test

Key facts An oestrogen blood test may test for: oestradiol, oestriol or oestrone. There are many reasons why you might need an oestrogen blood test. Your doctor will explain your test results. What is being tested? Oestrogen (also known as estrogen) is a group of sex hormones. It’s produced by both females and males, although in much greater amounts in females. Oestrogen helps the female reproductive organs — the ovaries, fallopian tubes, uterus (womb) and the vagina — to grow and mature. It also helps with breast development. Oestrogen levels rise naturally during puberty and fall after menopause. Many females