Oophorectomy (Ooph = ovaries, ectomy = remove) is an operation where the ovary is removed. This is performed when there is a cyst which is suspicuos and may be cancer. Bilateral oophorectomy is performed as part of a hysterectomy when a woman has either ovarian or endometrial (womb) cancer. It may also be performed via a laparoscopy in women with a family history of ovarian cancer or women thought to be at increased risk of ovarian cancer. Sometimes bilateral oophorectomy is the last option for the management of severe endometriosis.