Removing both ovaries starts menopause the same day. Here are the six differences from natural menopause that change what you do next.
Surgical menopause is menopause that begins the day both ovaries are removed. Natural menopause is a slow fade. Surgical menopause is a switch.
The reason is plain. Your ovaries make the estrogen and progesterone that run your cycle. Take both out and that supply stops at once, instead of tapering off over years.
Below are the six differences that change what you do next. They run from the speed of the symptoms to the bone and heart clock that starts early. None of them needs a test to understand.
Six ways surgical menopause does not behave like the natural kind
Natural menopause announces itself. Periods get irregular, then stop, and a full year without one confirms it.
Surgery removes the announcement. Here are the six differences, each drawn from what the institutions actually say.
- Onset is immediate, not gradual. Cleveland Clinic says removing both ovaries will cause menopause to begin immediately. The National Institute on Aging says that if you have your ovaries removed and are not taking hormones, you may experience symptoms of menopause immediately.
- There is no perimenopause to warn you. The National Institute on Aging describes a transition that usually starts with changes in menstrual cycle patterns and may last for several years. Surgery skips that window entirely.
- The hormone drop is abrupt. During the natural transition, the National Institute on Aging says the body's production of estrogen and progesterone declines greatly over time. Mayo Clinic describes the surgical version as a sudden loss in this source of hormones.
- It can arrive decades early. The National Institute on Aging puts the average age of menopause in the United States at 52. Mayo Clinic says having an oophorectomy at a younger age, such as before 45, may increase the risks related to early menopause.
- Bone and heart risks start sooner. Mayo Clinic lists heart disease and decreased bone density, called osteoporosis, among the complications a sudden loss of hormones can cause. Cleveland Clinic says ovaries make hormones that promote bone and heart health.
- The hormone therapy conversation is different. Mayo Clinic says low doses of hormone replacement medicine after surgery, and until about age 50, may reduce the risk of these complications. In the same breath it says hormone replacement therapy has risks of its own.
Nothing on that list says surgical menopause cannot be managed. It says it arrives without notice.
The symptoms that arrive first and how long they tend to last
Both kinds of menopause produce the same short list of symptoms. The difference is how fast they turn up.
Mayo Clinic says the sudden loss of that hormone source can cause hot flashes and vaginal dryness (Mayo Clinic, 2024). It also lists depression or anxiety, memory problems, decreased sex drive and decreased bone density.
Hot flashes are the symptom people ask about most. The National Institute on Aging says most last between 30 seconds and 10 minutes. They can come several times an hour, a few times a day, or once or twice a week.
Sleep is usually the second complaint. Night sweats are hot flashes at night, and they wake people up.
Removing both ovaries will cause menopause to begin immediately.
Know exactly what to say at your visit
Your free one page plan turns these six differences into three steps: what to track, the words to use with your doctor, and the checks to book now.
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⬇ Download your plan (PDF)Why the bone and heart clock starts on the day of surgery
Estrogen does more than run a cycle. Cleveland Clinic says the ovaries are reproductive glands that make hormones to control your menstrual cycle (Cleveland Clinic, 2022). Those same hormones promote bone and heart health.
Losing that supply early means the clock on those risks starts early too.
After menopause, women are more vulnerable to certain health conditions, including heart disease, stroke and osteoporosis (National Institute on Aging, 2024).
That is a case for asking about bone density and blood pressure sooner rather than later. It is not a case for panic.
Three things people get wrong about surgery and menopause
A few beliefs travel further than the evidence behind them.
A hysterectomy always causes menopause. It does not. Mayo Clinic says an oophorectomy can be done as part of a hysterectomy. It also says not every hysterectomy involves removing the ovaries. Menopause follows the ovaries, not the uterus.
Removing one ovary starts menopause. Cleveland Clinic says one ovary can carry on alone. If the other is still functioning, you will still get your menstrual period from it.
Hormone therapy after surgery is an automatic yes. Mayo Clinic says low doses after surgery and until about age 50 may reduce the risk. It then says plainly that hormone replacement therapy has risks of its own. It is a conversation, not a default.
To your health,
Ageless Coach
Age Strong. Live Long.
This article is education, not medical advice. Mayo Clinic says to talk with your healthcare team about the risks related to your own situation. Ageless Coach is an affiliate partner and may earn a commission on purchases made through links on this page.