An 18 year follow up of more than 27,000 women in the Women's Health Initiative found that hormone therapy did not raise the risk of dying, from any cause, from cardiovascular disease, or from cancer.
In late 2025 the US Food and Drug Administration removed the decades old boxed warnings about cardiovascular disease, breast cancer and dementia from many menopausal hormone products. That is the strongest warning a medicine can carry, and it was taken off.
You have been carrying a fear that was manufactured by a press conference in 2002, and it has probably cost you years.
What actually happened in 2002
The Women's Health Initiative was a genuine, large, randomized trial, and it deserves respect rather than dismissal. What went wrong was the reporting and the reading.
The combined arm was stopped early and announced with relative risk figures, without much context about who was in the trial. The average participant was well past menopause. Only about 30 percent of the women were aged 50 to 59 at the start, which is precisely the group most likely to want hormone therapy for symptoms in the first place. Many were in their late sixties and seventies, starting treatment for the first time, more than a decade after their last period.
The result was applied wholesale to a 52 year old with hot flashes, and it never applied to her.
The careful reading, twenty years on
What the evidence now supports, stated plainly and with the uncomfortable parts included:
- Started early, within about ten years of menopause and usually before 60, hormone therapy shows no increase in heart disease, and long term follow up shows no increase in overall mortality.
- Started late, in the late sixties or seventies, or more than ten years out, the cardiovascular picture turns less favorable. Timing is not a nuance here, it is the whole conversation.
- Breast cancer. Combined estrogen plus progestogen therapy slightly raises the risk, by roughly one extra case per 1,000 women per year of use. Estrogen alone, for women who have had a hysterectomy, carries lower or no added risk. That number is real and it belongs in your decision. It is also not the number most women think they are being told.
- Clots and stroke. Route matters enormously here and it has its own piece. Oral and transdermal are not the same treatment.
- Bone. Fracture reduction is among the most solid findings in the entire dataset.
On symptoms themselves, hormone therapy reduces hot flashes and night sweats by around 70 to 90 percent. There is nothing else in this field with that effect size.
The cost of the twenty years
This is the part that rarely gets said. When the clinics emptied, women did not simply go untreated for flashes. They went untreated through the exact window in which bone loss is fastest, in which body composition shifts, and in which the intimacy symptoms establish themselves and then advance.
A whole cohort was told to endure something they did not have to endure, on the basis of a finding that did not describe them. If you are 48 and quietly furious reading that, you are entitled to be.
Safe is not a property of a medicine. It is a property of a medicine in a particular woman, at a particular age, with a particular history. The honest answer to is it safe is: safe for whom, started when, given how, and instead of what.
Where it genuinely is not straightforward
No serious person tells you this is risk free, and a site that did would be selling you something.
A personal history of breast cancer changes the conversation completely. So does a history of blood clots, of stroke, of certain liver disease, or unexplained bleeding. High cardiovascular risk with abnormal lipids changes it. Starting many years after menopause changes it. In each of those cases the answer is not automatically no, but it is definitely not a decision to make from a website.
What this means for your next appointment
You now know the four questions that determine your actual risk, rather than the one you were frightened with:
How long since your final period. Whether you still have a uterus. Your personal and family history of breast disease and of clots. And what the symptoms are actually costing you, because a decision about risk is meaningless without the other side of the ledger.
Take those four things to somebody who works in hormones for a living and get a real answer for your own case. Take it to the specialist, in English or Dutch, and stop deciding this on the basis of a headline from 2002.