HRT Risks and Alternatives: What Research Shows

HRT Risks and Alternatives: What the Research Actually Shows

Anyone approaching menopause has almost certainly heard about HRT (hormone replacement therapy). It's often presented as the default solution,  the thing your doctor will likely suggest first if you mention hot flushes or night sweats. But before deciding whether it's right for you, it's worth understanding exactly what the research actually shows, both about HRT itself and about the natural alternatives available.

 

The menopause is not an illness. In conventional terms, the menopause and its symptoms are often viewed as a disorder caused by falling hormone levels, so replacing those hormones through HRT is presented as a kind of cure - in a similar way to how insulin is given to correct low insulin levels in diabetes. But there's an important difference. Diabetes is not a natural event, whereas the menopause is something every woman passes through. It is a natural stage of life, and there is a wealth of scientific evidence pointing to alternatives to HRT.

 

Interestingly, women in many other cultures do not experience the menopause as a crisis requiring medical intervention. Many simply do not suffer the physical and emotional symptoms that women in the West are often led to expect. In our society, the menopause tends to be framed around loss - the loss of periods, of fertility, of hormones. In other cultures, this stage of life is seen very differently, as a time of gained wisdom and a shift toward a valued role within the family and community.

 

The Origins and Development of HRT

 

Oestrogen therapy has been used for menopausal symptoms since the 1930s, originally given as injections, and later as implant pellets from 1938 onwards. HRT was initially called Oestrogen Replacement Therapy, because only oestrogen was given. However, it soon became clear that giving oestrogen alone could increase the risk of cancer of the womb and breasts, since oestrogen builds up the lining of the womb ready to receive a fertilised egg, and without progesterone to trigger a bleed, cell mutations could occur in that lining. To address this, progestogen - a synthetic version of progesterone - was added to the treatment, creating what is known as combined HRT. Since then, only women who have had a hysterectomy are typically given oestrogen alone.

 

What the Research Shows About Womb Cancer

Even with combined HRT, research has found over twice the risk of developing endometrial (womb) cancer compared to women who don't take HRT at all. This finding was confirmed by a meta-analysis - an overview pooling the results of all relevant studies - looking specifically at the effects of HRT on womb cancer.

 

What the Research Shows About Breast Cancer

 

Concerns about breast cancer and HRT first emerged in 1976, when the New England Journal of Medicine reported a study linking menopausal oestrogens to increased breast cancer risk. Numerous studies since have confirmed this finding. A large 1997 meta-analysis, coordinated by the Collaborative Group on Hormonal Factors in Breast Cancer, looked at more than 50 previous research projects involving over 160,000 women, and found a statistically significant increase in breast cancer among women on HRT. In plain terms, the research showed that HRT is undoubtedly linked to breast cancer. Two further studies published in early 2000 reinforced this, including one in the Journal of the American Medical Association studying over 46,000 women, which found a 40 percent increase in breast cancer risk among those taking HRT.

 

What the Research Shows About Blood Clots

 

A number of studies have shown that women taking HRT have an increased risk of venous thromboembolism - in other words, blood clots - with the risk appearing greatest during the first year or so of treatment. Blood clots matter because they can lead to strokes and heart attacks.

 

What the Research Shows About Heart Disease

 

Protecting against heart disease is often cited, alongside osteoporosis prevention, as a reason for starting HRT, even though heart disease itself is not a symptom of the menopause. An early study following a group of nurses on HRT, first reported in 1985, appeared to show a protective effect against heart attacks. However, this study had a significant flaw: it was not a randomised, double-blind, placebo-controlled trial. Instead, nurses were simply assigned to a group depending on whether they were already taking HRT, meaning women with contraindications such as a history of blood clots or high blood pressure would have been excluded from the HRT group from the outset, skewing the comparison.

 

Since then, the only published randomised, double-blind, placebo-controlled trial on HRT and cardiovascular disease found no benefit in taking HRT for heart disease, with no difference in deaths from heart conditions between women taking HRT and those who weren't. Concerningly, women taking HRT in this trial were nearly three times more likely to develop a clot in a vein. A separate, larger trial run by the Women's Health Initiative in America also found increasing cardiovascular problems, including heart attacks, strokes and clots, among women taking HRT compared to those given a placebo, within the first two years of the study. The conclusion drawn from this research is clear: HRT should not be prescribed solely for the secondary prevention of coronary heart disease.

 

Who Shouldn't Take HRT

 

HRT is not considered suitable for women who currently suffer from, or are in a high-risk category for, liver disease, breast cancer, or a history of thrombosis. Doctors are also advised to think carefully before prescribing HRT to women with hypertension, benign breast disease, fibroids, migraine, or endometriosis. Fibroids and endometriosis are both oestrogen-dependent conditions that tend to naturally settle as oestrogen levels decline at menopause, so adding HRT can reactivate them.

 

The Case for a Natural Approach First

 

Given this body of research, the natural approach favoured here treats the menopause as a natural event, with HRT positioned as a last resort rather than a default first step. Trying natural approaches first, and only then assessing whether HRT is genuinely needed, is a reasonable and evidence-informed way to proceed. The odds are that, once natural measures are properly in place, many women find they don't need it after all.

 

A natural treatment approach for menopause typically involves several stages: improving diet, using nutritional supplements known to help with menopausal symptoms, incorporating phytoestrogen-rich foods, reducing excess oestrogen exposure from the environment, and using specific herbs known to help with symptoms such as hot flushes and vaginal dryness.

What This Means If You're Already on HRT

 

If you're currently taking HRT and considering stopping, it's important to come off it gradually rather than suddenly, since a sudden stop can trigger a "rebound" effect, where symptoms such as hot flushes and night sweats become worse than before starting HRT. Speaking to your doctor about gradually reducing your dose, while putting natural recommendations in place over around three months, is generally the more comfortable route. If you're taking HRT and wish to continue, dietary and supplement recommendations remain just as relevant, since they support overall wellbeing regardless of your HRT status.

 

It's also worth remembering that not every symptom experienced around the age of 45 is automatically down to the menopause. A number of other health conditions can produce similar symptoms, so it's worth working out - ideally with your doctor - what's genuinely linked to hormonal changes and what might have another cause entirely, rather than assuming HRT is the only answer simply because of your age.

 

The Bottom Line

 

HRT was developed with good intentions - to correct a perceived hormone deficiency - but decades of research have revealed genuine risks around womb cancer, breast cancer, blood clots and no proven heart disease benefit. Understanding this research puts you in a stronger position to make an informed choice, whether that's exploring natural approaches first, discussing alternatives with your doctor, or deciding that HRT is still the right option for your individual circumstances.

 

This article is for information only and is not intended to be a substitute for medical advice. Always consult a qualified doctor or health practitioner before making changes to your diet or supplement routine.