Detailed definition
Surgical menopause occurs when both ovaries are removed (bilateral oophorectomy), most often as part of a hysterectomy with bilateral salpingo-oophorectomy (BSO) for benign or oncologic indications, or as risk-reduction surgery in BRCA mutation carriers. Because ovarian estradiol production stops abruptly rather than gradually, women experience severe vasomotor symptoms, sleep disruption, mood changes, and accelerated bone loss often within days. Unlike natural menopause, where ovarian testosterone production declines gradually, surgical menopause also removes the ovarian contribution to circulating testosterone — so women lose roughly half their androgen supply abruptly, which contributes to libido loss and fatigue. Long-term observational data show that women under 45 who undergo bilateral oophorectomy without estrogen replacement have higher risks of osteoporosis, cardiovascular disease, and cognitive decline. Major societies recommend HRT for these women at least until the average age of natural menopause, usually 51.
Why it matters in menopause
Many women undergoing hysterectomy for benign disease are not counseled about whether to keep their ovaries. The default in many practices has been to remove healthy ovaries "while we're in there" — but the long-term evidence increasingly supports ovarian preservation in women without specific oncologic risk. For women already in surgical menopause, HRT is rarely controversial in the absence of contraindications, and many will benefit from low-dose testosterone alongside estradiol and progesterone.
Related terms
Sources
External references: Wikipedia.